Dasa antardasa(Brihat Jatak)

Stanza 1:
The most powerful among Lagna, Surya and Chandra, with planets in their kendras give results in the commencement, middle, and last periods of life respectively. If planets are not in kendras, etc., the results will flow in the commencement even from Apoklima planets.
Stanza 2:
The planet most powerful gives the first dasa extending over that period of life granted by him. If many planets are equally powerful then the first dasa will belong to that planet who gives the largest term of life. If some planets give equal terms of life, then the first dasa will be given by that planet who rises first.
Stanza 3:
The planet with the Dasanatha gives half the term of that dasa with his results. The planet who occupies the thrikona from him gives one-third of that period with his results. The planet in the 7th from him gives one-seventh of his period. The planet who is in chaturasra gives one-fourth of that term. In this manner lagna and planets give their Dasas and Antardasas.
Stanza 4:
Bring all the fractions to a common figure, omit the denominators and multiply severally the numerators by the dasa years and then divide the whole by the total of the numerators. By doing this you get the Antardasa periods.
Stanza 5:
The Dasa (period) of a most powerful and exalted planet is called the Poorna Dasa. The dasa of a powerless planet is called the Rikta. The period of that planet which is in the navamsa of unfriendly amsa is called the Aristaphala.
Stanza 6:
The planet who has fallen from exaltation gives Avarohi Dasa. If he joins friendly or exalted navamsa, he constitutes Madhya Dasa.
The planet who is ascending from his debilitation gives Arohani Dasa. If such a planet occupies debilitated or unfriendly navamsa, he gives a worthless period.
Stanza 7:
If a planet is in a good house and joins debilitated or unfriendly navamsa, it gives mixed results. The names are fixed for these indicative of their results. I shall give the results of the periods of the Sun, etc., later on.
Stanza 8:
If lagna rises in common sign, its drekkanas constitute Adhama, Madhya and Pujita respectively. If lagna is movable, the order must be reversed. If lagna is fixed, they constitute Ashubha, Ista and Sama respectively. Lagna Dasas are thus arranged.
Stanza 9:
Moon, Mars, Mercury, Venus, Jupiter, the Sun and Saturn give 1, 2, 9, 20, 18, 20, 50 years respectively of Nisargika Dasa. If in the previously stated dasa period of the planets, they get also this ?Nisargika dasa, they produce good results. Some of Yavanaas say that the Lagna Dasa comes in the end and gives good. Some do not accept this view.
Stanza 10:
If the anthardasanatha is in lagna, or if his friend is in lagna, or if lagna falls in his friend’s or in his varga, the dasa beginning then, will be productive of good. Or if he is in the 3rd, 6th, 10th or 11th houses it is good. Or if the Moon occupies the exaltation house of the Pakaswami or his friendly rasi, or thrikona, or the 7th from him, it produces good. If it is the reverse it produces bad.
Stanza 11:
That dasa which begins when the Moon is in his own house is good and gives honour, wealth and happiness. That dasa which begins when the Moon is in Kuja’s house makes his wife immoral; if that dasa begins when the Moon is in Budha’s house it gives education, friends and wealth; if the dasa begins when the Moon is in Simha it gives work for him in forts, forests, roads, houses and agriculture; if it begins when the Moon is in Sukra’s house he gives all desirable food; if it begins when the Moon is in Sani’s house it gives mean woman; if it begins when the Moon is in Guru’s house it gives reputation, wealth and happiness.
Stanza 12:
The Sun gives wealth by Nakha, (nails or claws) teeth, skins, gold, cruelty, travel, kings and wars. He makes the man hot-tempered determined in doing work, in getting reputation and good by courage. He gets misery through wife, children, wealth, enemy, weapon, fire and king. The Sun gives liberty, fondness for sinful deeds, quarrels among his workmen or servants, complaints in chest, stomach and other diseases.
Stanza 13:
During the Moon’s period the person gets money or profits from mantras, Brahmins, sugarcane, milk, clothes, flowers, playing, oil seeds, good and fatigue or pain. He will be fond of sleep, laziness, enduring pain, Brahmins and Devatas, getting female issues, possessed of good intelligence, reputation, earning and spending, and he will pick quarrels with is own men and those who are more powerful than himself.
Stanza 14:
During the period of Mars there will be destruction of enemies, gains from rulers, lands, brothers, sheep and wool. He will have hatred among his children, wife, friends, brothers, learned men, and preceptors. He will suffer from thirst, bloody diseases, fever, bile, fractures. He’ll be fond of others’ wives, sinful men and uncharitable deeds. He’ll be harsh, hot and evil-tempered
Stanza 15:
In the period of Mercury, the person gets wealth by embassy, friends, preceptors and Brahmins. He’ll be praised by learned men and thereby gets reputation. He gets gold, mules, lands and personal charm, and happiness. He’ll be witty and humorous and will be clever in serving. he’ll have a good mind and charitable disposition. Harshness, fatigue, restraint or imprisonment, mental disease and complaints from the three dhatus (vaata, pittha and sleshma) will result
Stanza 16:
In his period, Jupiter gives honor, good character, good mind, personal charm, courage, philanthropic disposition, determination and devotion. He gets wealth thru mantras, kings, vedic recitation, counsel and skill in diplomacy. He’ll have gold, houses, sons, elephants, clothes and friendship with good rulers. he gets troubled by deep thinking, diseases in the ear and hatred among lawless people
Stanza 17:
During Venus’ period, the person will be fond of music, pleasure, fine scents, good food and drink, clothes, females, gems, personal charm, sensual pleasure, yogis, friends, desirable personages, skill in merchandise, agriculture, treasure-troves, wealth, hated by communities, kings, wild people, vagabonds and sorrow thru friendship
Stanza 18:
During Saturn’s period, the person gets donkeys, camels, birds, buffaloes, old women, leadership over communities, towns or cities, and inferior gains. he gets miseries or troubles thru phlegm, jealousy, wind, anger, derangement, dirt, laziness and fatigue. He’ll be insulted and terrified by servants, children, wife and will suffer the loss of a limb
Stanza 19:
Good periods give happiness and bad periods produce misery. Mixed periods give mixed results and the result of the lagna dasa will be similar in nature to its lord
Stanza 20:
In the period of each planet, the results will be based on the materials or objects that have been detailed in the Saumgnyadhyaya and the means of livelihood detailed in the Karma Jivadhyaya. Results of the planets will be determined by the aspects, occupation and other combinations given elsewhere
Stanza 21:
Different planets give their luster of the mahabootas in their periods. This luster or shade has to be identified by the nose, face, eyes, skin and ear obtained by or thru the earth, water, fire, air and space
Stanza 22:
During the time of an auspicious planet, the mind of the person will be good. It enables the man to get wealth and secure happiness. The dasa may also be known by the happiness or misery the man is subjected to. The results produced by powerless planets will be enjoyed in dreams and thoughts
Stanza 23:
If one planet represents two contrary results, the effect will be the destruction of those events. but if one is stronger than the other, the stronger prevails. If one planet represents one and another indicates a contrary result, there’ll be both the results. Planets give good or bad in their own periods