"Yoga" is one of the unique predictive tools of Vedic Astrology. Yoga is a predefined rule taking Planets, Signs and/or Vedic Astrological aspects into account. The effect of a Yoga, good or bad will manifest in one's life the timing of which is determined by transits and, or planetary periods.

The effect of yoga depends on several combined and interrelated factors. Sometimes a single planet is the cause of more than a one yoga and one of them could be malefic yoga and other a benefic yoga, this is because all planets except Sun and Moon owns two houses. For example, in case, of Mesha Lagna or Aries ascendant, the ninth house lord Jupiter is also the lord of malefic twelfth house. Thus, if Jupiter is making any benefic yoga is one's horoscope, then its positive results will be diminished, (however marginal it might be) and at the same time if it is making any malefic yoga, its negative results too will be diminished.

Sometimes the planet/s causing a benefic or malefic Yoga will never manifest in one's lifetime or will do so in very weak way, this is because as per Vimshottari dasa system the total planetary period is of 120 years and if the planet's period causing particular yoga happens during childhood years or very old age or may not happen at all in life time. In these cases only weak results may manifest during sub periods or anter dasha of the planets connected with any particular yoga. The best results happen when a yoga karaka (a planet having lordship of trine as well as quadrant house) planet is involved in any favorable yoga and is well placed as per house, sign, aspect and favorable transits coincide with the planetary period of concerned planets.

Our effort is to mention all the known Yogas of Vedic Astrology which are mentioned in ancient text as well as the addition to these in medieval and modern times. The Yogas are mentioned below in alphabetical order.

Kaal Sarp Yogas in Vedic Astrology

There are 12 types of Kaal Sarp Yogas or Kaal Sarp Dosha which are as follows:
(1) Anant Kaal Sarp Yoga  
(2) Kulik Kaal Sarp Yoga  
(3) Vasuki Kaal Sarp Yoga  
(4) Shankpal Kaal Sarp Yoga  
(5) Padma Kaal Sarp Yoga  
(6) Maha Padma Kaal Sarp Yoga  
(7) Takshak Kaal Sarp Yoga  
(8) Karkotak Kaal Sarp Yoga  
(9) Shankh Chud Kaal Sarp Yoga  
(10) Patak Kaal Sarp Yoga  
(11) Vishakta Kaal Sarp Yoga  
(12) Sheshnag Kaal Sarp Yoga