The scrip skyrocketed 16.34 per cent to settle at Rs 29.90 on BSE. During the day, it zoomed 19.84 per cent to Rs 30.80.
At NSE, shares of the company jumped 17.28 per cent to end at Rs 30.20.
Under the agreement, Ruchi Soya will process and pack the crude oil provided by Patanjali Ayurved as per their specifications, the company said in a release.
Ruchi Soya currently has the largest edible oil refining capacity in India of 3.3 million metric tonnes per annum across 13 facilities.