The constellations have a major role to play in deciding the strength of the planets as far as the digbala and power of planets whether they are in exaltation or debilitation signs. Some astrologers of view that exalted planet give good results and debilitated planets give bad results, but this is not correct. When the lord of 6th, 8th and 12th house becomes exalted it may not be beneficial to the native, as far as the prosperity in the material world is concerned. We will have give importance to the constellations and how their lords are placed in the chart to arrive proper results and the outcome from the chart. As we know that the usual order of strength of the planets as follows:
1. Rahu and Ketu are most powerful
2. The Sun,
3. The Moon,
8. Mercury is the least powerful It may be notices that the power or strength of the planets decreases gradually from Rahu and Ketu to Mercury as stated above.
In charts where there are combinations or conjunctions of planets and also in cases where the house occupied by them is not their neither own nor exaltation houses, the aforesaid rule will be useful to assess the strength of weakness of the planets. We should consider the Moolatrikona sings and their importance in predictions and evaluating the strength of the planets. Moolatrikona refers to the strongest sign owned by a planet. Moolatrikona sings are for The sun is Leo, Moon is Taurus, Mars’s is Aries, Mercury’s is Virgo, Jupiter’s is Sagittarius, Venus’s is Libra, Saturn’s is Aquarius. We should note that the five planets Mars, Mercury, Jupiter, Venus and Saturn own one odd sign and one even sign.
The natural benefic are more powerful in odd signs and the natural malefic are more powerful or strong in even signs. This article is totally based on the calculation of strength of the planets using method given by Guruji Sri NV Raghava Chary (Meena2). Meena2 further states that “whenever one or two planets control a chart or rather the horoscope of person such a native is prominent, powerful, affluent, distinguished in life and society. Nobody should jump to a conclusion that on account of such control one is bestowed with all good, but it depends on the factors whether the planet or planets are beneficially or malefically disposed of in the particular chart in question. Benefics confer good and favourable results where as on the other hand malefic shower bad, distressing and troublesome results. In case of yoga operating on the controlling planet the native is well placed in life will all good”1.
Here I have analysed two charts and given two principles for the benefit of astrologers to apply these principles to analsyse the strength of the planets and the chart to arrive proper results. Principle: 1 If a horoscope is controlled by one planet and that too by a yoga karaka planet then that native will be very well known, famous, very rich and notable personality. - Meena2 Naadi William Henry ”Bill” Gates III (born October 28, 1955, 21.15.00, Zone 8.00, Lahiri 23.14.39 Seattle WA USA 122W 19 47N 36. Tithi 13th, Trayodashi of Waxing, yoga Moon, Karan 14th Harshana, Sun rise 06.51.02, Sunset 16.54.18 is an American business magnate, investor, philanthropist, author, and former CEO and current chairman of Microsoft, the software company he founded with Paul Allen. He is consistently ranked among the world’s wealthiest people 1and he was ranked third. During his career at Microsoft, Gates held the positions of CEO and chief software architect, and remains the largest individual shareholder. He has also authored or co-authored several books. Gates is one of the best-known entrepreneurs of the personal computer revolution.
In the later stages of his career, Gates has pursued a number of philanthropic endeavours, donating large amounts of money to various charitable organizations and scientific research programs through the Bill & Melinda Gates Foundation, established in 2000. In 2011, Bill Gates was ranked as the fifth most powerful person in the world, according to rankings by Forbes magazine. Venus is strong in Libra than in Taurus, since benefices are stronger in odd sign. In Libra Saturn and Sun are there so they are under the control of Venus. Jupiter is in the house of Leo whose lord is sun is under the control of Venus hence Jupiter is also under the control of Venus. Moon is in the house of Jupiter and Jupiter is already under the control of Venus and hence Moon is under the control of Venus. Mercury and Mars are in the naksatra of Moon and already Moon is under the control of Venus hence both these planets are under the control of Venus.
Rahu is in the house of Scorpio whose lord is Mars and Mars is under the control of Venus hence Rahu is also under the control of Venus. Ketu is in the house of Venus and having the influence of Venus. Lagnathipathi is Mercury through the Moon is under the control of Venus. Note here that almost all the planets are under the control of Venus the lord of 5th house and the Venus is yoga karaka for Gemini Lagna. This (house lord) type of control of one planet is called Sthoola control of one planet on the native. Note here that every house has connection of the yoga karaka planet Venus hence the native is multi millionaire and philanthropist, industrialist, powerful personality, charitable in nature etc. Principle: 2 If all the houses or planets controlled by a single most powerful planet then that native attains prominence and gets elevation, success and recognitions in their respective fields linked with the significators or karakatwas of that powerful planet. Mother Teresa 27.8.1910, 10.25.00, Zone 2.00, Lahiri 22.36.20, Yugoslavia, 21E 26 41N 59, Tithi - 8 of Waning Moon, Yoga - 13th - Vyaghata, Karan 45th Balava, Sun rise 05.59.39, Sunset 19.12.40 Life Events: She was a Noble prize winner for peace on 10-12-1979 and Bharat Ratna award winner from Government of India.
A great spiritual leader, charitable, helped the needy, had run a number of educational, medical institutions and orphanage, old age homes etc Mother Teresa, of Calcutta, born Agnes Gonxha Bojaxhiu, was an Albanian Roman Catholic nun with Indian citizenship  who founded the Missionaries of Charity in Kolkata (Calcutta), India in 1950. For over 45 years she ministered to the poor, sick, orphaned, and dying, while guiding the Missionaries of Charity’s expansion, first throughout India and then in other countries.1 By the 1970s she had become internationally famed as a humanitarian and advocate for the poor and helpless. She won the Nobel Peace Prize in 1979 and India’s highest civilian honor, the Bharat Ratna, in 1980 for her humanitarian work. Mother Teresa’s Missionaries of Charity continued to expand, and at the time of her death it was operating 610 missions in 123 countries, including hospitals and homes for people with HIV/AIDS, leprosy and tuberculosis, soup kitchens, children’s and family counseling programs, orphanages, and schools.
Spiritual life : Analyzing her deeds and achievements, John Paul II asked: “Where did Mother Teresa find the strength and perseverance to place her completely at the service of others? Moon, Mercury and Rahu are in the star of the Sun, the Sun is posited in its own house and also in the 10th house from lagna and got digbhala and most powerful, hence Sun is controlling them. Ketu is in the star of Jupiter and the Jupiter is with Mercury who is already conrolled by the Sun so Jupiter and Ketu are under the controll of the Sun. The lagnathipathi Mars is with the Sun and he is controlled by the Sun. Venus is in the star of Mercury , since Mercury is under the control of the Sun, so Venus is also under the control of the Sun.
Saturn is in the house of Mars and also in the star of Venus, both the planets are under the control of the Sun hence the Saturn is also under the control of the Sun. Note here that all the planets are under the control of the most poweful planet the Sun through naksatras (stellar effects), this type control is called Sookshama control, this is most poweful control than sthoola control of planets. The most powerful planet the Sun is in the star of exalted Ketu (as per Meena1 & Meena2) is posited (Scorpio) in the Lagna. Ketu is in the star of Jupiter and this link of Jupiter and Ketu had given her spiritual bent of mind and service to others. This service was recognised by the world due to most powerful the Sun posited in the 10th house having digbala. This single planet the Sun, who controls her chart, had given her the name, fame, respect and spiritual recognition by the world (Noble Prize) and also by the Government of India (Bharat Ratna).