Singha, Surajit Chandra2017-01-072017-01-071987-01-20https://ir.nbu.ac.in/handle/123456789/404en20th Annual ConvocationSurajit Chandra SinghaChief Guest Speech20th Convocation on 20-01-1987 ,Chief Guest Speech- Prof. Surajit Chandra SinghaOther