The President Mrs. Pratibha Devi Singh Patil will inaugurate the concluding ceremony of the Platinum Jubilee celebration of the Indian National Science Academy at Saha Institute of Nuclear Physics in Kolkata today. The President arrived in Kolkata last evening on a three-day visit to West Bengal.<br/><br/>AIR Kolkata correspondent reports that eminent scientists from across the globe held discussions on climate changes, food security, energy conservation, water resources and other contemporary issues of sciences during four-day long conference. The President will also inaugurate solar system power project at Raj Bhavan in Kolkata this evening.<br/><br/>