Chapter 27.

Evaluation of Strengths

1 - 2. STHAANA BALA - UCHCHABALA:
Now about the strengths by classes positional, temporal, etc. (Firstly, Uchchabala forming part of positional strength or Sthaanabala). Deduct from the longitude of the planet its (deep) debilitation point. If the sum is less than 6 signs, consider it as it is; if it exceeds 6 signs, deduct the same from 12 signs. The sum so got be converted into degree etc. and divided by 3 which is the planet's Uchchabala or exaltation strength (in Virupas).

2-4. SAPTAVARGAJA BALA:
If a planet is in its Moolatrikona Rasi, it gets 45 Virupas, in own Rasi 30 Virupas, extreme friend's Rasi 20 Virupas, friend's Rasi 15 Virupas, neutral's Rasi 10 Virupas, enemy's Rasi 4 Virupas, and in extreme enemy's Rasi 2 Virupas. Similarly, viz. Hora, Decanate, Saptamamsa, Navamsa, Dvadasamsa, and Trimsamsa. When all these are added together the planet's Saptavargaja Bala emerges.

4 1/2. OJHAYUGMARASIAMSA BALA:
Each of Venus and the Moon in even Rasis and others in odd Rasis acquire a quarter of Rupa (i.e. 15 Virupas). These are applicable to such Navamsas also.

5. KENDRADI BALA:
A planet in an angle gets full strength while one in succedent house gets half and the one in cadent house gets a quarter (or Rupa)(as Kendradi bala).

6. DREKKANA BALA:
Male, female, and hermaphrodite planets respectively get a quarter Rupa according to placements in the first, second, and third decanates.

7-7 1/2. DIGBALA OR DIRECTIONAL STRENGTH:
Deduct the 4th house (i.e. Nadir) from the longitudes of Sun and Mars; the 7th house (i.e. descendant) from that of Jupiter and Mercury; the 10th house (i.e. meridian) from that of Venus and the moon; and lastly the ascendant from that of Saturn. If the sum is above 180 degrees deduct the sum from 360. The sum arrived in either way be divided by 3 which will be the Digbala (or directional strength) of the planet.

8-9. KAALA BALA OR TEMPORAL STRENGTH - NATHONNATHA BALA.
Find out the difference between midnight and apparent birth time which is called Unnata. Deduct Unnata from 30 ghatis to obtain Nata. Double the Nata in ghatis which will indicate identical Natha bala for the Moon, Mars, and Saturn. Deduct the Natha from 60 to know the Unnatha bala of the Sun, Jupiter, and Venus. Mercury, irrespective of day and night, gets full Nathonnatha Bala (i.e. of 1 Rupa or 60 virupas).

10-11. PAKSHA BALA:
Deduct from the Moon's longitude that of the Sun. If the sum exceeds 6 signs, deduct the same from 12. The product so obtained be converted into degrees etc. and divided by 3 which will indicate the Paksha bala of each of the benefic planets. The Paksha bala of benefic should be deducted from 60 which will go to each malefic as Paksha bala.

12. TRIBHAGA BALA:
One Rupa is obtained by Mercury (if birth is) in the first one third part of day time, by the Sun in the second one third part of the day and by Saturn in the last third part of the day.
Similarly, the Moon, Venus, and Mars get full strength (of one Rupa) in the first, second, and last one-third parts of the night. Jupiter gets this strength at all times.

13. VARSHA-MAASA-DINA-HORA BALA:
15, 30, 45, and 60 Virupas are in order given to Varsha lord, Maasa lord, Dina lord, and Hora lord. Naisargika bala (or natural strength) has already been explained.

14. NAISARGIKA BALA (NATURAL STRENGTH):
Divide one Rupa (or 60 Virupas) by 7 and multiply the resultant product by 1 to 7 separately which will indicate the Natural Strength due to Saturn, Mars, Mercury, Jupiter, Venus, the Moon, and the Sun, respectively.

15-17. AYANA BALA:
45, 33, and 12 are the Khandas for calculating Ayana Bala. Add Ayanamsa to the planet (for which Ayana Bala is required) and find out the Bhuha (distance from the nearest equinox). Add the figure corresponding to the Rasi(of the Bhuja) to the Bhuja.
The degree etc of the Bhuja (devoid of Rasi) be multiplied by the figure corresponding to the higher of the the left out Khandas and divided by 30. Add the resultant product to the sum obtained earlier. Convert this into Rasi etc. If the Moon and Saturn are in Libra or ahead add to this 3 Rasis, and if in Aries to Virgo reduce from 3 Rasis. Similarly it is reverse for the Sun, Mars, Venus, and Jupiter, (i.e. addition or deduction is converse). For Mercury 3 Rasis are always additive. The resultant sum in Rasi, degrees and minutes be divided by 3 to get the Ayana Bala in Rupas.

18. MOTIONAL STRENGTH FOR SUN AND MOON:
The Sun's Cheshta Bala (or motional strength) will correspond to his Ayana Bala. The moon's Paksha Bala will itself be her Chesta Bala.

19. DRIG BALA (ASPECTUAL STRENGTH):
Reduce one fourth of the Drishti Pinda if a planet has malefic aspects on it and add a fourth if it is aspected by a benefic. Super add the entire aspect of Mercury and Jupiter to get the net strength of a planet.

20. PLANETARY WAR:
Should there be a war between the starry planets (i.e. between 2 planets from Mars to Saturn, in a given horoscope), the difference between the Shadbalas of the two should be added to the victor's Shadbala and deducted from the Shadbala of the vanquished.

21-23. PLANETARY MOTIONS (MARS TO SATURN):
Eight kinds of motions are attributed to planets. These are Vakra (retrogression), Anuvakra (entering the previous sign in retrograde motion), Vikala (devoid of Motion or in stationary position), Manda (somewhat slower motion than usual), Mandatara (slower than the previous mentioned motion), Sama (somewhat increasing in motion as against Manda), Chara (faster than Sama), and Atichara (entering next sign in accelerated motion). The strengths allotted due to such 8 motions are : 60, 30, 15, 30, 15, 7.5, 45, and 30.

24-25. MOTIONAL STRENGTH FOR MARS ETC:
Add together the mean and true longitudes of a planet and divide the same by two. Reduce this sum from the Seeghrocha (or apogee) of the planet. The resultant product will indicate the Chesta Kendra (or Seeghra Kendra) of the planet from 12 signs., The Rasi, degrees and minutes so arrived be converted into degrees, minutes etc. and divided by 3 which will denote the motional strength of the planet. Thus there are six sources of strength called Sthaana Bala Digbal, Kaalabala, Drigbala, Cheshta Bala, and Naisargika Bala.

26-29. BHAVA BALAS:
Thus I explained about the planetary strengths. Deduct the 7th house (longitude of descendant) from the bhava happens to be in Virgo, Gemini, Libra, Aquarius, or the first half of Sagittarius. If Aries, Taurus, Leo, or the first half of Capricorn or the second half of Sagittarius happen to be the bhava, deduct the 4th house (Nadir) from it. Should the Bhava be in Cancer or in Scorpio, deduct from it the ascendant. And deduct the 10th house (meridian) from the bhava happening to fall in Capricorn second half or Pisces. Convert the product so obtained (in the respective case) into degress etc. and divide by 3 to get the strength of the bhava. If the balance in the process of deducting the Nadir, Meridian, ascendant, or descendant exceeds 6 signs, deduct it again from 12 signs before converting into degrees and dividing by 3. The product after division should be increased by a fourth if the bhava in question has a benefic aspect on it. And a malefic's aspect will entail one fourth reduction. If Jupiter or Mercury aspect a bhava, add the planet's aspectual strength also. And then superadd the strength acquired by the lord of that Bhava. This will be the net strength of that Bhava.

30-31. SPECIAL RULES:
The bhavas occupied by Jupiter and Mercury will each get an addition of 1 rupa while each of the bhava occupied by Saturn, Mars, and the Sun suffer 1 rupa reduction. 15 Virupas will have to be added to the bhavas falling in Seershodaya Rasis if birth happens to be in day time, to the bhavas falling in dual (or common) Rasis if birth happens to be in twilight and to the bhava falling in Prishtodaya Rasis if birth be in night.

32-33. SHADBALA REQUIREMENTS:
390, 360, 300, 420, 390, 330, and 300 Virupas are the Shadbala Pindas needed for the Sun etc. (up to Saturn) to be considered strong. If the strength exceeds, the planet is deemed to be very strong.
34-36. Jupiter, Mercury, and the Sun are strong if each of their Sthaana Bala, Digbala, Kaalabala, Chesta Bala, and Ayana Bala are respectively 165, 35, 50, 112, and 30 Virupas. The same required for the Moon and Venus are 133, 50, 30, 100, and 40. For Mars and Saturn these are 96, 30, 40, 67, and 20.

37-38. BHAVA EFFECTS:
O Brahmin, thus the various sources of strengths be gathered together and effects declared. Whatever yogas or effects have been stated with respect to a bhava will come to pass through the strongest planet.

39-40. ELIGIBILITY TO ISSUE FRUITFUL PREDICTIONS:
O Maitreya, the words of one who has achieved skill in mathematics, one who has put in industrious efforts in the branch of grammar, one who has knowledge of justice, one who is intelligent, one who has knowledge of geography, space and time, one who has conquered his senses, one who is skillfully logical (in estimation), and one who is favorable to astrology, will doubtless be truthful.