New Delhi [India], February 3: A National Seminar on Natural Farming was organized by Tapsil Jati Adibasi Praktan Sainik Krishi Bikash Shilpa Kendra, Vill-Gentegory, P.O.-Palashy, P.S.-Dhaniakali, Dist-Hooghly, PIN-712303 (W.B.) at Constitution Club of India, New Delhi.