Kalasarpa Yoga (KSY) is said to be formed if all the planets are situated between Rahu and Ketu.
The results are that countries and rulers are destroyed and people become afflicted. .
Strictly speaking KSY does not find a place in the classical astrological literature. How this yoga gained lot of popularity now-a-days.
The definition of KSY given above generally holds good. But what if all the planets are hemmed
in between Ketu and Rahu? According to some, this does not constitute KSY. But in my view
irrespective of whether the planets are between Rahu and Ketu or Ketu and Rahu the yoga technically exists. But in conferring results several variations are possible.
The general belief is that KSY is evil restraining all the other good yogas present in the horoscope and that those having the yoga will have set-backs and reverses in life. It is also feared that Kalasarpa Yoga is capable of nullifying the most powerful Dhana yogas rendering a rich man poor.
In interpreting Kalasarpa Yoga, consideration should be given to the houses which are mainly involved, e.g., 1st and 7th, 2nd and 8th, 3rd and 9th, 4th and l0th, 5th and 11th. 6th and 12th, etc.
In each case the results could be different, depending upon a number of other horoscopic factors. Generally it is found, other combinations warranting.
The 6th-12th axis (i.e., Kalasarpa Yoga) could indicate incarceration, or spiritual elevation, depending upon the presence or absence of powerful Bandhana Yogas.
If the axis involves the 1st and 7th houses, it is not good for marital happiness. The marital life may become oppressive and marred by frequent clashes and want of understanding.
If the 7th lord or Venus is strongly placed and well disposed then the evil results should not be predicted. The marital troubles can be avoided. Knowing in advance, the implications of this yoga, one can regulate one's thinking and behavior and develop an understanding.
Likewise if the houses involved are the 4th and 10th, setbacks may mark one's career unless the 10th house or the 10th lord is strong and well placed.
KSY has its bright & different shades. It makes one industrious, hard-working, aware of one's own ability despite mental restlessness. It raises the natives to top positions in their respective fields provided of course other Raja Yogas are present.
Rahu-Kethu axis favours rise in mundane life while Kethu-Rahu axis indicates elevation in spiritual matters.
It is also found that KSY natives get betrayed by trusted friends and even relatives.
Suffering due to developments in life strengthens the mind and mellows one’ s outlook. This is a blessing of KSY.
Other important factors to be noted are :-
(1) In a KSY horoscope, the evil gets intensified if the Lagna is between Ketu and Rahu;
(2) the evil gets almost neutralised if the Lagna is between Rahu and Ketu and
(3) the yoga can be considered as defunct even if a single planet is with Rahu or Ketu or outside the axis.
The original sloka refers to agree rahu, i. e., Rahu must be the main or prominent planet which means the Yoga can become effective if planets are in between Rahu and Kethu. Another factor to be considered is if the planet associated with Rahu or Kethu is strongly disposed in his exaltation or own house, the intensity of the KSY gets reduced. The common fear that if KalaSarpa Yoga is fully present the effects of other good planetary combinations get nullified is not without justification. The r e a r e horoscopes with excellent yogas showing great advancement and prosperity but the natives continue to be mediocre. A brilliant career may suddenly end. Such cases may have KSY but it may not be the main cause for making one what he is. it may be one of the causes.
It occurs to me that undue importance need not be given to KSY. The view held by some astrologers that KSY affects longevity and adversely affects the operation of other yoga’s favoring rise in life, Achievement and accomplishment is not tenable.
The overall assessment of the horoscope is important. No single yoga, including KSY, is capable of marring or making a horoscope. In my view Kalasarpa Yoga plays an important role in mundane astrology and is not of much importance in individual charts.