The Haldia project will involve an investment of Rs. 5,500 crore

GREEN POWER: Jyoti Poddar (left), Managing Director, Bhaskar Silicon, and Hans Authenreith (right), Centrotherm, Germany, exchanging documents in the presence of Nirupam Sen, Minister for Industry and Commerce, West Bengal Government, in Kolkata on Thursday.

KOLKATA: The country's first polysilicon solar project, which also happens to be the largest integrated solar power complex of the world, was launched here on Thursday.