While there is no publicly available information confirming whether Mukesh Ambani, the chairman and managing director of Reliance Industries, is vegetarian, it is widely known that he follows a Jain lifestyle.
Jains are a religious group that follows a strict vegetarian diet, typically avoiding all animal products, including meat, fish, eggs, and dairy.
Therefore, it is highly likely that Mr. Ambani adheres to a vegetarian diet, although there is no official confirmation from him or his representatives.