In Vedic astrology our sages has given wonderful system of timing events using dasha systems and they have given more then 100 dasha!!
But out of all Vimshottari dasha is most popular one which is used by each and every user and astrologer and their lies concept of Mahadasha and Antardasha which are the two main workers in it.
I am very sure you hear about people talking about their running mahadasha and antardasha and what they are talking about is actually Vimshottari dasha system.
There are few astrologers who uses Jaimini Chardasha, Yogini and even Ashtakvarga to predict events in native life.
Jaimini dasha is so vast that as per as per Shri K.N Rao you can predict even when there is birth time error since here we use charakarakas and lordships are ignored.
But Vimshottari is still the most widely used.
A very important thing to tell here is that don't think Vimshottari dasha is most accurate.
In fact it can mislead you because a lot of factors comes in play here and a proper investigation need to be made where divisional charts should be added accordingly.
And most of users and Astrologers can't use division charts perfectly!! The truth is no one can.
The best way to reach a conclusion in any Horoscope is using composite analysis where at least one more dasha system should be used it could be Jaimini Chardasha or Yogini or even K.P.
Don't relay on Vimshottari dasha alone, it can be very misleading if you don't use other parameters which can be endless and confusion creating.
General Principles Of Vimshottari Mahadasha-Antardasha System
In Vimshottari Dasha we use certain years which are designated to 9 planets viz Sun, Moon, Mars, Mercury, Jupiter, Venus, Saturn, Rahu & Ketu.
Though their order in Vimshottari Mahadasha system is as follows:
But these order will change as per the lord of the Nakshatra where Moon is posted at the time of birth of the native.
I will mention the whole mathematics and calculations on it later on but first of all we need to discuss the duration (years) allotted to them.
The word Vimshottari means 120 in Sanskrit and as per some authors it the total duration lived by Human when Astrology was written.
As per some texts Arjuna was 55 years old and was fairly young. In today's modern world no one lives 120 years!!
In Vimshottari Dasha system following duration is allotted to the said 9 planets:
- Ketu- 7 years.
- Venus- 20 years.
- Sun- 6 years.
- Moon- 10 years.
- Mars-7 years.
- Rahu- 18 years.
- Jupiter- 16 years.
- Saturn- 19 years.
- Mercury- 16 years.
It is interesting to see that last three planets have been allotted maximum years to them.
Now one question may arise why the order is in such way??
Why general Vimshottari mahadasha order doesn't start with Jupiter ? Or with any other planet?
The reason why Ketu is first in order because the first Nakshatra in Astrology which is Ashwani is ruled by planet Ketu and then next one which is Kritika is ruled by Venus and so on.
You can check the table below which will give you information on Nakshatra and their lords.
When one identify the starting Vimshottari mahadasha then accordingly analysis is made.
All kind of Rajyoga are checked and one need to evaluate when they will be activated by Vimshottari mahadasha lord. So now you would have got the idea on the duration and general order of planets in Vimshottari dasha system.
How Vimshottari Mahadasha Is Calculated In A Horoscope
Have you wondered why the duration of the first dasha may not be excatly the same as mentioned in texts.
For example you may see in your own Horoscope that the your first dasha was not of same duration which is alloted to it.
In my own case first dasha was of Mercury which last for 15 years from birth which is 2 years less than what is alloted to Mercury i.e 17 years.
So here it is important to know how Vimshottri dasha is calculated and in this excersice some mathematics is involved.
So here I start.
As mentioned before the Vimshottri dasha is calculated from the Moon.
So in a Horoscope we need to see where planet Moon is posted and see the degrees of it.
Let's take following birth details for this excersice:
Date Of Birth: 21-12-2020
Time Of Birth: 18:54
Place Of Birth: Delhi
You can see in the image below the degree of Moon is in sign of Virgo at 13 degrees 46 minutes and is in Nakshatra of Hasta.
Hasta is ruled by planet Moon and the here the beginning Vimshottari Mahadasha will be of Moon and next Vimshottari mahadasha will be of Mars followed by Rahu.
Now need to determine how many more degrees and minutes the Moon would have to travel to reach the end of Hasta Nakshatra.
Hasta nakshatra spans is until 23 degrees and 20 minutes of Virgo.
Each Nakshatra is 13 degrees and 20 minutes or 800 minutes in length.
Since the Moon, in our example, is located at 13 degrees and 46 minutes of Virgo the Moon had already completed 3 degrees and 46 minutes of Hasta Nakshatra.
Which means 9 degrees 34 minutes are remaining to be cover by planet Moon.
Here you will need to covert the remaining degrees of Moon into minutes which can be done via multiplying 9*60= 540 and add 34 minutes into it.
Which means remaining minutes are 574.
Now divide 574 by 800 to get the percentage of the period that remains
574 divided by 800 equals: 0.7175.
So, now we need to consider the length of the Moon period, which is always 10 years.
So, 0.7175 of the 10 years of Moon mahadasha would remain at birth.
Now multiply the duration of the planetary period by the remainder 10 multiplied by 0.7175 equals: 7.175 (years).
Next we multiply the remainder (minus the years) by 12 to get the months 12 multiplied by 0.175 equals: 2.1 (months)
Now we multiply the remainder minus the months by 30 to get the days 30 multiplied by 0.1 which is 3 days.
So the remaining Moon Vimshottari dasha period here is 7 years 2 months and 3 days.
How To Judge Vimshottari Mahadasha Lord & Its Effects
This is the main and core of the Astrology and for this we will consider planet Mars as the mahadasha lord and will apply rules on it.
First of all see what is the rising ascendant here and based on that Vimshottari Mahadasha lord will have a intent which can be benefic or malefic in nature.
This is called as concept of Functional nature where a planet becomes good or bad depending on the house it own.
I have written a article on it where lordships are explained properly.
For sake of this article Mahadasha Lord Mars is benefic for following ascendants:
For rest of the ascendants Mars is a malefic planet though in Ascendants like Taurus, Gemini and Aquarius planet Mars can give good career growth provided Mars is well placed in the Horoscope.
Once you have judged the role of planet Mars here the next step is to see its placement in the Horoscope.
Mars can be placed in own, exalted or in debilitation. If debilitated then check if Necchabhanga is happening or not.
Same way check if Vimshottari mahadasha lord is in Pushkar Navamsha or not.
This will further change the results of the Mars mahadasha.
Or Mars can be placed in trine, kendra or dushtana house and factor also need to be accounted.
You will need to account the placement of mahadasha lord in Navamsha also and based on what area you are investigating on like career then D-10 divisional chart will also need to be consider.
This is the first and major step.
The next step will be checking association of mahadasha lord with other planets.
Association with other functional benefics will be considered as good and in mahadasha of Mars the results will be good.
Association of Mars with functional malefic will deliver bad results or will counter the good results of Mars mahadasha.
Same way you have to judge the condition of antardasha lord and same time see how the antardasha lord is placed in respect to mahadasha lord.
For example here you Venus is antardasha lord and here you will need to see how Venus is placed in relation to Mars.
Placement of Venus in 6th, 8th or 12th house from Mars is not good and can cause issues in significations of Venus.
Above mentioned rules are very basic and there are other factors also which decides the outcome of a Vimshottari Mahadasha.
Which Vimshottari Mahadasha Is Most Bad?
As such no mahadasha is generally bad or good, everything depends on Horoscope of the native.
Saturn mahadasha which is considered as evil can prove wonderful to many people.
For example Amitabh Bacchan got amazing success as soon as his Saturn mahadasha started.
Whereas as biggest benefic planet Jupiter Mahadasha can prove very evil.
In Horoscope of Mahatma Gandhi , he died in his Jupiter Mahadasha even though Jupiter dasha gave him success in his freedom movement but same time Jupiter caused a painful death.
Therefore it means that you can't relay on general results of any Vimshottari Mahadasha. You need to judge the the Mahadasha lord and Antardasha lord and then make a conclusion on it.
General Results Of Sun Mahadasha- 6 Years
Sun is a Royal planet which is hot in temperament and during its mahadasha planet Sun leads to various kind of results which are as follows:
- Gains from father.
- Gains from government
- Job in government sector.
- Loss of hairs.
- Spiritual progress.
- Gains of Gemstones.
- Interest in agriculture.
- Boils in body.
- Increase in thrust.
- Wandering in mountain.
- Abroad travel.
- Loss of documents.
- Association with people in power.
- Gain of mantra siddhi.
Now depending on position of planet Sun in natal Horoscope these significations can change and results will modify.
General Results Of Moon Mahadasha- 10 Years
Just like planet Sun Moon is also a royal planet and a natural benefic also. In general ways Moon Vimshottari mahadasha is considered as good provided it is having good rays of Sun (waxing moon) and same time is strong via zodiac placement.
Following results are usually observed during Moon Vimshottari mahadasha:
- Increase in thickness of hairs.
- Attainment of wealth.
- Attainment of cloths.
- Good relationship with mother.
- Attainment of house or car.
- Position as minister.
- Interest in music.
- Gains of ornaments.
- Abroad travel.
- Attainment of gadgets like mobile etc.
Above mentioned results of Moon Vimshottari mahadasha will change depending on the condition of planet Moon in the Horoscope.
General Results Of Mars Mahadasha-7 Years
Mars is a malefic planet and is considered as inauspicious unless it is benefic or Yogakaraka in the horoscope. Mars Vimshottari mahadasha is not considered as good and can cause issues with many areas in life of an individual.
Following results are generally observed in Mars Vimshottari mahadasha:
- Loss of hairs.
- Increase in blood pressure.
- Increase in anger.
- Lack of marital happiness.
- Gain of land.
- Chances of injury.
- Theft in house.
- Tendency to eat meat.
- Hyperactive behavior.
Above mentioned results are subject to change depending on nature of planet Mars in the Horoscope.
General Results Of Mercury Mahadasha- 17 Years
Mercury is a benefic planet and and its Vimshottari mahadasha tends to give auspicious results. Mercury is a fast moving planet and it is seen Mercury shows affliction easily then other planets.
Let's see the general results of Mercury mahadasha.
- Increase in concentration.
- Good sleep.
- Gain of wealth.
- Increase in knowledge.
- Good speech.
- Good results in education.
- Frequent travels.
- Increase in appetite.
- Good health.
- Abroad travel.
Above results will change and can be negative if Mercury is malefic and afflicted at same time.
General Results Of Jupiter Mahadasha- 16 Years
Jupiter is the biggest benefic planets and its dasha can do wonders provided it is well placed and is a benefic planet.
Let's see the general results of Jupiter Vimshottari mahadasha.
- Increase in wealth.
- Religious travels.
- Increase in faith.
- Auspicious ceremonies.
- Gain in Fat.
- Promotion at Job.
- Abroad travel.
- Stay in ashrams.
- Divine experiences.
- Peaceful married life.
Above results will change and can be vice versa depending on various factors in the horoscope.
General Results Of Saturn Mahsdasha- 19 Years
This second longest Vimshottari mahadasha is the most fearful one and if Sade Sati also comes along with it then native see torments in his or her life.
Let's see the general results of it:
- Pain in joints.
- Grey hairs.
- No results of actions.
- Harassment from people.
- Theft in house.
- Lack of mental peace.
- Bad sleep.
Now all these above results seems very negative but it can be positive also if Saturn is Yoga karaka or a benefic.
General Results Of Venus Mahadasha- 18 Years
Rahu is North Node of planet Moon and forms of the most mysterious Kaal Sarpa Yoga. It transit is something you can't ignore either.
Let's see the general results of Rahu Vimshottari mahadasha:
- Abroad travel.
- Bad eyesight.
- Bad dreams.
- Lack of concentration.
- Good Job.
- Attainment of wealth.
Above results of Rahu mahadasha can modify as per the horoscope of the native.
General Results Of Ketu Vimshottari Dasha- 06 Years
Ketu is South Node of planet Moon and as per some texts its results are akin to planet Mars. Let's see the general results of Ketu Vimshottari Mahadasha.
- Back or Neck pain.
- Increase of interest in occult.
- Association with wise men.
- Bad sleep.
- Lack of hunger.
- Issues to maternal uncle.
- Bad relationship with in family.
- Divine experiences.
- Unnecessary travels.
Above you seen the general effects of all planets in their Vimshottari mahadasha but since each and every Horoscope is different there results can be very different than what I have mentioned.
Hence it is important one should know how to make a proper analysis on Vimshottari mahadasha results.
Concept Of Antardasha In Vimshottari Mahadasha System
In above paragraph I mentioned a term antardasha and in Vimshottari Dasha system it is a major factor which helps us to predict events.
Antardasha is further breakup of any mahadasha in Vimshottari dasha system.
With in a Mahadasha there will be 9 antardasha where first antardasha will belong to the lord of the mahadasha lord itself.
The concert of antardasha in Vimshottari dasha system brings a dynamic factor where one can use it to predict events.
Only mahadasha can't give much idea, it is the antardasha which gives further clues.
I will give an example to explain this statement.
Look at the Horoscope given below and the native is running Jupiter Mahadasha.
Jupiter is 5th lord which means within Jupiter Mahadasha a child will be born. But which part of this mahadasha will bring a child to the native.
Answer lies to antardasha here, see that Mars is placed in the 5th house and same time Moon is also aspecting the 5th house from the 11th house.
This means that antardasha of Mars and Moon can give childbirth.
This is just a minor example of use of antardasha, it is more vast and complicated than this.
How To Calculate Duration Of Antardasha
The duration of antardasha are fixed just like period of mahadasha and is calculated by following formula.
Vimshottari period of mahadasha lord multiply Vimshottari period of antardasha lord/ 120
Here 120 is used since the while Vimshottari dasha is of 120 years.
Suppose you want to find antardasha of Moon in mahadasha of Sun.
Then here is how you will do it:
You will multiply the Vimshottari dasha period allotted to planet Sun which is 6 years to Vimshottari dasha period allotted to planet Moon which is 10 years and divide it by 120.
6*10/120= .5 months which means 6 months.
Same way you can apply this formula to find antardasha period of all planets.
To make it easier for you I have calculated these period and is given below.
Ketu Mahadasha: 7 years
Ketu- Ketu: 0 years 4 months 27 days
Ketu-Venus: 1 year 2 months 0 days
Ketu-Sun: 0 years 4 months 6 days
Ketu-Moon: 0 years 7 months 0 days
Ketu-Mars: 0 years 4 months 27 days
Ketu-Rahu: 1 year 0 months 18 days
Ketu-Jupiter: 0 years 11 months 6 days
Ketu-Saturn: 1 year 1 month 9 days
Ketu-Mercury: 0 years 11 months 27 days
Venus Mahadasha: 20 years
Venus-Venus: 3 years 4 months 0 days
Venus-Sun: 1 year 0 months 0 days
Venus-Moon: 1 year 8 months 0 days
Venus-Mars: 1 year 2 months 0 days
Venus-Rahu: 3 years 0 months 0 days
Venus-Jupiter: 2 years 8 months 0 days
Venus-Saturn: 3 years 2 months 0 days
Venus-Mercury: 2 years 10 months 0 days
Venus-Ketu: 1 year 2 months 0 days
Sun Mahadasha: 6 years
Sun-Sun: 0 years 3 months 18 days
Sun-Moon: 0 years 6 months 0 days
Sun-Mars: 0 years 4 months 6 days
Sun-Rahu: 0 years 10 months 24 days
Sun-Jupiter: 0 years 9 months 18 days
Sun-Saturn: 0 years 11 months 12 days
Sun-Mercury: 0 years 10 months 6 days
Sun-Ketu: 0 years 4 months 6 days
Sun-Venus: 1 year 0 months 0 days
Moon Mahadasha: 10 years
Moon-Moon: 0 years 10 months 0 days
Moon-Mars: 0 years 7 months 0 days
Moon-Rahu: 1 year 6 months 0 days
Moon-Jupiter: 1 year 4 months 0 days
Moon-Saturn: 1 year 7 months 0 days
Moon-Mercury: 1 year 5 months 0 days
Moon-Ketu: 0 years 7 months 0 days
Moon-Venus: 1 year 8 months 0 days
Moon-Sun: 0 years 6 months 0 days
Mars Mahadasha: 7 years
Mars-Mars: 0 years 4 months 27 days
Mars-Rahu: 1 year 0 months 18 days
Mars-Jupiter: 0 years 11 months 6 day
Mars-Saturn: 1 year 1 month 9 days
Mars-Mercury: 0 years 11 months 27 days
Mars-Ketu: 0 years 4 months 27 days
Mars-Venus: 1 year 2 months 0 days
Mars-Sun: 0 years 4 months 6 days
Mars-Moon: 0 years 7 months 0 days
Rahu Dasha: 18 years
Rahu-Rahu: 2 years 8 month 12 days
Rahu-Jupiter: 2 years 4 months 24 days
Rahu-Saturn: 2 years 10 months 6 days
Rahu-Mercury: 2 years 6 months 18 days
Rahu-Ketu: 1 year 0 months 18 days
Rahu-Venus: 3 years 0 months 0 days
Rahu-Sun: 0 years 10 months 24 days
Rahu-Moon: 1 year 6 months 0 days
Rahu-Mars: 1 year 0 months 18 days
Jupiter Dasha: 16 years
Jupiter-Jupiter: 2 years 1 month 18 days
Jupiter-Saturn: 2 years 6 months 12 days
Jupiter-Mercury: 2 years 3 months 6 days
Jupiter-Ketu: 0 years 11 months 6 days
Jupiter-Venus: 2 years 8 months 0 days
Jupiter-Sun: 0 years 9 months 18 days
Jupiter-Moon: 1 year 4 months 0 days
Jupiter-Mars: 0 years 11 months 6 days
Jupiter-Rahu: 2 years 4 months 24 days
Saturn Dasha: 19 years
Saturn-Saturn: 3 years 0 months 3 days
Saturn-Mercury: 2 years 8 months 9 days
Saturn-Ketu: 1 year 9 months 9 days
Saturn-Venus: 3 years 2 months 0 days
Saturn-Sun: 0 years 11 months 12 days
Saturn-Moon: 1 year 7 months 0 days
Saturn-Mars: 1 year 1 month 9 days
Saturn-Rahu: 2 years 10 months 6 days
Saturn-Jupiter: 2 years 6 months 12 days
Mercury Dasha: 17 years
Mercury-Mercury: 2 years 4 months 27 days
Mercury-Ketu: 0 years 11 months 27 days
Mercury-Venus: 2 years 10 months 0 days
Mercury-Sun: 0 years 10 months 6 days
Mercury-Moon: 1 year 5 months 0 days
Mercury-Mars: 0 years 11 months 27 days
Mercury-Rahu: 2 years 6 months 18 days
Mercury-Jupiter: 2 years 3 months 6 days
Mercury-Saturn: 2 years 8 months 9 days
Above-mentioned duration is fixed but at the time of birth just like duration of beginning mahadasha the antardasha duration may also vary.
Which will depend on the distance to be covered by Moon the nakshatra at the time of birth.
General Remedies For All Vimshottari Mahadasha
Remedies are best tool to evade or minimize the negative results of a Vimshottari mahadasha or Antardasha.
Remedies can also be used to maximize the good results also.
Before doing remedies one need to identify weather the Vimshottari mahadasha lord should be pacified or given more strength and for that the whole Horoscope need to be analyzed. From lordship to strength of the planet all factors need to be checked.
Here, I am giving very general remedies for all planets which can be done in their respective Vimshottari mahadasha.
Remedies For Sun Vimshottari Mahadasha
Planet Sun which is king in planetary cabinet is known to give one power and position and following remedies should be done in its dasha.
Its remedies can be very effective.
1. Pour water to Sun in early Sunrise time and same time recite "om suryay namah".
2. Recite Shri Adityahridyam Stotram daily.
3. Offer Jaggery & wheat on Sundays in any temple.
4. Avoid meat & alcohol especially on Sundays.
5. Planet a Bhilva tree.
6. Wear a Jyotish Quality Ruby if application from the ascendant & position of planet Sun in natal Horoscope.
Remedies For Moon Vimshottari Mahadasha
Moon is another Royal planet and is considered as Queen in Vedic astrology. A well placed Moon in Horoscope gives one stable mind and success in life.
The Vimshottri dasha of afflicted Moon at the birth of a child give rise to Balaristha.
Following remedies are useful to perform in Moon mahadasha:
1. Pour water to Shivlingam on Mondays.
2. Fast on 21 consecutive Full Moon.
3. Donate Bell in a Temple on a Monday.
4. Recite Shri Taandavstotram.
5. Planet Mohogany tree.
6. Wear Jyotish Quality Sea Pearl on smallest finger if Horoscope permits that.
Remedies For Mars Vimshottari Mahadasha
Mars is a malefic planet but still have capabilities to do when for a native. Its dasha can be tough though and following remedies are to be perform.
1. Recite Hanuman Chalisa, Bajrang Naan & Hanumashtak daily.
2. Donate Green Lentin on Tuesday.
3. Avoid meat & alcohol especially on Tuesdays.
4. Plant pomegranate tree.
5. Wear a Jyotish Quality Red Coral on ring finger if Mars is a benefic in Horoscope.
Remedies For Mercury Vimshottari Mahadasha
Mercury is another benefic planet whose mahadasha-antardasha is capable to bring positive changes in life. The remedies for planet Mercury are quite easy and can do wonder.
Let's see what are the simplest remedy for Mercury:
1. Donate Kajal, Bangles and a Dhol to Enunch on Wednesday which falls on new moon (amavasya) or in a Wednesday in wanning phase of Moon.
2. Water Tulsi planet every day.
3. Plant either Tulsi to get benefit from Mercury vimshottri mahadasha.
4. Donate Green vegitables to poor & needy.
5. Donate study material to needy kids.
6. Wear a Jyotish Quality Green Emerald on smallest or on Pendant if Horoscope permits the same.
Remedies For Jupiter Vimshottari Mahadasha
Jupiter is the best benefic in general terms and can do wonders to a native life, Jupiter & Rahu union causes Guru chandal yoga and let's see the remedies for its maha & antardasha
1. Put Kesar Tilak on forehead or on naval everyday.
2. Wear a Haldi (turmaric) on neck on red thread or the color of thread which resembles the color of the planet where Jupiter is placed in Horoscope.
3. Fasting on Thursday is also a popular remedy for Jupiter Mahadasha.
4. Donate Yellow daal (channa) on Thursday.
5. Plant Beetal tree.
6. Wear a Yellow Sapphire if Horoscope permits that.
Remedies For Venus Vimshottari Mahadasha
Venus have the longest Vimshottri dasha period of 20 years and depending on nature, placement & strength of Venus it can be either a pleasing or bad experience.
Only targeted remedies can help one in this regard.
Let's see those remedies which will work in Venus mahadasha:
1. Pour water & Curd mixture on Shivlingam everyday or atleast on Fridays.
2. Fast on Fridays.
3. Avoid sour food on Fridays.
4. Donate white colour sweets & cloths to young childerns.
5. Planet a Gooseberry tree.
6. Wear a Jyotish Quality White sapphire if Venus is auspicious in Horoscope.
Remedies For Saturn Vimshottari Mahadasha
Saturn mahadasha is what everyone fears in their life and it can be very hard if Saturn weak in the Horoscope. In such case intense dedication is required to perform the remedies.
Simple & effective remedies for Saturn maha & antardasha:
1. Worship Lord Hanuman daily.
2. Pour mustard oil mixed with Black sessame seeds on Idol of Lord Saturn on every Wednesdays.
3. Help poor & needy whenever possible.
4. Donate food to Hungry.
5. Plant a Bamboo tree.
6. Wear a Jyotish Quality Blue Sapphire if Horoscope permits the same.
Remedies For Rahu Vimshottari Mahadasha
Rahu in Vedic astrology doesn't own any sign and is a shadow planet, its dasha is also very long and is of 18 years. There is one aspect of Rahu Vimshottari mahadasha is that it brings foreign factor for sure. Here foreign doesn't mean exactly abroad, it could be religion, choices and material possession.
The person tend to act differently and if Rahu is well disposed then its Vimshottari mahadasha can be amazing like in case of M.S Dhoni.
Let's see the remedies for Rahu Vimshottari mahadasha:
1. Avoid smoking & tobaccos.
2. Worship Goddess Durga daily.
3. Feed Pigeons.
4. Wear a Jyotish Quality Hessonite if Horoscope have such indications.
Remedies For Ketu Vimshottari Mahadasha
The 2nd shortest mahadasha belongs to planet Ketu which is only 6 years and can be one of the toughest mahadasha to endure. People talk about Saturn Vimshottri mahadasha but it is the Ketu which can cause most pain though by end of Ketu vimshottri mahadasha the person becomes a completely different individual with a lot of positive changes in him.
Let's see its remedies to nullify the negative aspects of it:
1. Keep a Black dog.
2. Feed fishes.
3. Wear Cats eye Gemstone if Horoscope behave such indications.
Conclusions On Vimshottari Mahadasha System
The wonderful dasha system of Vimshottari can be useful especially one uses all the principles of Astrology. It is important to take account the Rajyoga, Dhanyoga and other necessary Yoga of Astrology because without that timing of events will be very difficult.
As mentioned before Vimshottari mahadasha is most popular one and 99 percent people use it for making predictions but it can be misleading also hence a alternative dasha should also be used parallelly before making any conclusions.
It is very important to use divisional charts if Vimshottari dasha is being used without that false conclusions will be made in the Horoscope.