1. Issued by C.P.M.G- U.P.Circle Lucknow o the occasion of LUPHILEX2006
2. Four stamps were issued on 11 spt.1997 celebrating 50 th anniversary of Birbal Sahni Institute of palaeobotany, Lucknow.
3. The Birbal Sahni Institute of Palaeobotany Lucknow, established in the year 1946, was an outcome of vision of Prof. Birbal Sahni, son of Ruchi Ram Sahani (A stamp was issued on 24.10.2013) is an autonomous Institute under the Department of Science and Technology, Government of India, dedicated to both fundamental and applied aspects of plant fossil research.