Dosha checks

Enter a birth date, time and place. The tool checks Manglik dosha from the Lagna, the Moon and Venus and applies the commonly cited cancellations. It names the Kaal Sarpa type, lists every Sade Sati and Dhaiyya period in your lifetime with their phases, and checks other popular doshas such as Guru Chandal, Grahan, Pitru and Gandmool. Each result shows the rule it uses.

The rules used

Manglik (Mangal) dosha: Mars in house 1, 2, 4, 7, 8 or 12, counted by whole signs from the Lagna, the Moon and Venus. The strength shown is how many of these three reference points give a Manglik house. Most traditions give the Lagna the most weight.

Manglik cancellations applied: Mars in its own sign (Mesha or Vrishchika) or exalted (Makara); Mars in the same sign as Jupiter, or in Jupiter's 5th, 7th or 9th sign aspect; and the house-and-sign pairs 2nd in Mithuna or Kanya, 4th in Mesha or Vrishchika, 7th in Karka or Makara, 8th in Dhanu or Meena, and 12th in Vrishabha or Tula. Lists of cancellations differ between texts. A Manglik placement in both partners is checked in Kundli matching.

Kaal Sarpa: all seven grahas, from Sun to Saturn, lie on one side of the Rahu–Ketu axis by longitude. The twelve types (Anant, Kulik, Vasuki, Shankhpal, Padma, Mahapadma, Takshak, Karkotak, Shankhachud, Ghatak, Vishdhar, Sheshnag) follow Rahu's house from the Lagna, 1 to 12. If exactly one graha is outside, the tool says so and calls it partial, as some astrologers do. Kaal Sarpa is not described in the classical texts.

Sade Sati and Dhaiyya: Sade Sati is Saturn in the 12th, 1st or 2nd sign from the natal Moon sign: the rising, peak and setting phases. Dhaiyya is Saturn in the 4th (Kantaka) or 8th (Ashtama) sign from the Moon. The tool follows Saturn's sidereal position from birth to age 100 and finds each sign change to the hour. Stays split by retrograde motion are kept together as one period.

Other combinations: Guru Chandal (Jupiter with Rahu), Grahan (Sun or Moon with Rahu or Ketu), Angarak (Mars with Rahu), Shrapit (Saturn with Rahu) and Pitru dosha (Rahu or Ketu in the 9th, or the Sun with Rahu) are popular rules. "With" means in the same sign. Kemadruma is a classical yoga. Gandmool is the Moon in Ashwini, Ashlesha, Magha, Jyeshtha, Mula or Revati.

Limits

These are rule checks. They say whether a rule is met, not what it means for a person. Only the cancellations listed above are applied; your tradition may accept others or reject some of these. The popular doshas have several definitions in use, and the tool uses the one stated. Speak to a qualified astrologer before drawing conclusions.