This Yog is an Horoscope condition, which results from the influence of Rahu and Ketu on the remaining planets, in the Kundly of an individual. ‘Kal Sarp’ causes a chequered life, especially with regard to one’s career, due to which one only achieves modest success after a great deal of struggle. However, this effect lasts for only one – third of the lifespan of an individual, thereafter, its influence decreases. ‘Kal Sarp Yog ’ is however, a permanent condition and does not change with transit. This Yantra or astrological talisman greatly reduces its influence.