Shankha Yoga

Shankha Yoga is formed by the rulers of the 5th and 6th houses, located in mutual kendras [i.e., in the 1st, 4th, 7th, or 10th houses from each other]. In this case, Lagnesha must be strong; or the lord of the 9th house must be strong, and Lagnesha and the lord of the 10th house must be located in movable signs.

Results of the yoga: humanistic ideals, righteousness, scientific education, long life, good wife and children, love for pleasures.

Shri Govind Swarup Agarwal - "Vedic Astrology"