Kaal Sarp Dosha
Check whether all seven planets lie between Rahu and Ketu in your birth chart.
Kaal Sarp is a later tradition: it is not described in the classical texts (Parashara, Phaladeepika), and many traditional astrologers do not use it. Read it as one view among many, never as a reason for fear.
What it means
When every planet sits on one side of the Rahu–Ketu axis, those who use Kaal Sarp read a life with strong ups and downs that settles with effort and time. Many charts with it are successful; its effect depends on the whole chart.
What tradition suggests
Those who follow it suggest simple prayer to Shiva (especially on Mondays) and the mantras of Rahu and Ketu. No costly ritual is needed, and no one should be frightened by it.
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Questions
What is Kaal Sarp dosha?
All seven planets lying on one side of the Rahu–Ketu axis. It is a later tradition, not described in the classical texts such as Parashara, and many traditional astrologers do not use it.
What does partial Kaal Sarp mean?
Every planet but one lies between Rahu and Ketu. Those who use Kaal Sarp read it as a milder form.
Why does the type need my birth time?
The twelve types (Anant to Sheshnag) are named by the house Rahu occupies counted from the Lagna, and the Lagna needs the birth time.