1980 SINGH, Harjit (b. 1938) Ph.D.,F.N.A.,F.A.Sc., Professor Emeritus, Chemistry Department, Guru Nanak Dev University, Amritsar – 143005; Res. 151, Defence Enclave, Amritsar – 143001; Tel: (0183) 258802-9 Ext. 3194(O), 09465670668(M); Fax: 258820; Email: ; Sp. Heterocyclic Chemistry/Supramolecular Chemistry.