West Bengal Chief Minister Mamata Banerjee, Chairman and managing director of Reliance Industries Mukesh Ambani , Former Cricketer Sourav Ganguly and delegates during the inauguration of the Bengal Global Business Summit (BGBS) in Kolkata. Mukesh Ambani, the chairman and MD of Reliance Industries Limited (RIL), on Tuesday said that the company is planning to invest Rs 20,000 crore in West Bengal in the next three years. "Reliance will leave no stone unturned to accelerate West Bengal's growth. Reliance has invested close to Rs 45,000 crores in West Bengal. We plan to invest an additional Rs 20,000 crores in the next 3 years in the state," Mukesh Ambani said at the 7th edition of Bengal Global Business Summit.