Supercross India plans to invest Rs 150 crore in the Indian Supercross Racing League (ISRL) over the next three years. The investment will be used for motorsports infrastructure and grassroots development. The company is seeking funds from private equity players and has already sold a 5% stake to a player at a valuation of Rs 350 crore. The league, which will feature six to eight franchises, is set to launch in December and has received registrations from 75 riders worldwide.