Appealing to save every drop of rain, conserve water and save electricity, Das said environment was a matter for concern and its imbalance was seen clearly.
Union Home Minister Rajnath Singh was present during the programme.
Union Minister of State for Rural Development Sudarshan Bhagat, Jharkhand Urban Development minister C P Singh, MPs Ravindra Rai, Ramtahal Choudhary and Mahesh Poddar were also among the dignitaries present on the occasion.