Sanjay Byalal Jagannath, Co-founder of Exponent Energy, has exited the rapid-charging battery startup for personal reasons, Moneycontrol reported. He Co-founded the company in 2020 with Arun Vinayak after both left Ather Energy. Jagannath currently owns about 3-3.7% in Exponent and will be diluting a significant part of his stake. The company is valued at around $150-180 million.