I also share the astrologer K.N.Rao's view that the Kal-Sarpa Dosha is one of the biggest frauds in astrology. First of all nobody knows from where this kal-sarpa yoga has originated. No reference can be found in any of the classical texts like Brihat Parashar Hora Shastra, Brihat Jatak, Saravali etc. Secondly and most importantly, I always mentioned that the birth chart should be analysed in totality. Every horoscope has hundreds of good and bad yogas and all these yogas should be synthesized before drawing any conclusion. A single Rajyoga can not make anybody king, similarly a kal-sarpa yoga alone can not create death like situation.
Here is what Dr. B.V. Raman, the most respected Vedic astrologer of the last century, has to say about Kala-sarpa yoga:
"Kala-sarpa Yoga has its bright shades. It [is said to] makes one industrious, hardworking, 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-Ketu axis favors rise in mundane life while Ketu-Rahu axis indicates elevation in spiritual matters. It is also found that Kala-sarpa Yoga 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 Kala-sarpa Yoga."
"It occurs to me that undue importance need not be given to Kala-sarpa Yoga. The view held by some astrologers that Kala-sarpa Yoga affects longevity and adversely affects the operation of other yogas favoring a rise in life, achievement, and accomplishment is not tenable. The overall assessment of the horoscope is important. No single yoga, including Kala-sarpa Yoga, is capable of marring or making a horoscope. In our view, Kala-sarpa Yoga plays an important role in mundane astrology [assessment of world events] and is not of much importance in individual charts."
It is what eminent astrologer K.N. Rao has to say about Kal Sarpa Yoga -
Here the astrologer, ever ready with a remedy, is in demand. This astrologer must first create fright in the minds of his clients and it is done most easily by pointing out Kala-sarpa Yoga or even half Kala-sarpa Yoga. Here he promises to perform a yagna at a cost of some thousands of rupees for shantis. This is the prerogative of the Brahmins.
So Kala-sarpa Yoga is a big and newly discovered source of income of Brahmins which is pitiable. Brahmins were meant to be the beacon lights of dharma and spirituality if they themselves reached higher stage of sadhana. But so many of them have become KAAL SARPA YOGIS .
I am sure that all astrology scholoers will agree to Shri K.N.Rao. Just to conclude, I would say that there is dispute about the existence of Kal-sarpa yoga. For the sake of argument if we accpet that there is somethign called "Kal-sarpa Dosha" exists, still there is no need to fear about it as all good and bad yogas should be combined to give any predictions.
Remedies for Kal-sarpa Yoga:
As you can clearly make out from the above that there is no remedy required for Kal-sarpa yoga. The birth chart should be analyzed with all good and bad yoga, balas, aspects, placements etc. and then only any remedy should be prescibed. If an astrologer finds any planet malefic, appropriate remedy for that planet(s) should be performed. There is no need to go to Traymbkeshwar, Nasik or Ujjain to perform the remedy and spend thousands of rupees. Astrologers use Traymbkeshwar, Nasik or Ujjain just to make you spend the maximum amount of money possible and also to justify the fear factor of Kal-sarpa Yoga.
Further Readings and References: