President of Bengal National Chamber of Commerce and Industry (BNCCI) Sandip Sen lights ceremonial lamp while Managing Director of West Bengal Green Energy Development Corporation S P Gon Chaudhuri, Prasad Ranjan Ray and Director of Saha Institute of Nuclear Physics &Variable Energy Cyclotron Center Bikash Sinha look on during a seminar on Green Building A Step Towards Energy Conservation on the occasion of ‘World Environment Day’ at Taj Bengal in Kolkata on Friday, 05 June 2009.

Photographer: Bhaskar Mallick

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