Subbamma Jasti, 91, is now India's oldest woman billionaire, debuting on Forbes' list with a net worth exceeding $1.1 billion. The biggest chunk of Jasti's inheritance is derived from the sale of a substantial stake in Suven Pharmaceuticals in 2022 to Advent International, as per Forbes. Savitri Jindal ($34.9 billion) remains India's wealthiest woman, followed by Rekha Jhunjhunwala ($8.5 billion).