Book release function of "Bihar ka Paryavaran Dasha aur Disha" a-Book release-Bihar ka Paryavaran Dasha aur Disha authored by Jose Kalapura & Niraj Kumar, Sept 19, 20171 b-Book release-Bihar ka Paryavaran Dasha aur Disha authored by Jose Kalapura & Niraj Kumar, Sept 19, 20171