Ratnesh started following the work of Prasanta Ghosh. 2012-04-25 21:55:56 -0700

Ratnesh started following the work of Jitendra Pal Singh, G.B.P.U.A & T University, Pantnagar. U.S.Nagar. Uttrakhand. India, Physics. 2012-03-25 08:46:01 -0700

Ratnesh added a paper 2011-11-24 03:47:31 -0800