Kaviraj Pandit Durga Dutt Sharma vs Navaratna Pharmaceutical ... on 20 October, 1964
Kaviraj Pandit Durga Dutt Sharma v. Navaratna Pharmaceutical Laboratories (1966) 1 S.C.J. 731 : A.I.R. 1 65 S.C. 980 and Amritdhara Pharmacy v. Satya Deo Gupta .