West Bengal Chief Minister Mamata Banerjee on Tuesday announced a slew of new policies including plans to double the state's exports, modernise its logistics and promote renewable energy manufacturing, while opening the Bengal Global Business Summit, reported news agency PTI.

Mamata Banerjee also announced a policy to promote bio-fuels and a new sub-sea cable landing station at the sea-resort of Digha to help improve internet connectivity in the eastern region, reported PTI.