The influence of a family planning promotion effort on the number of tubectomies and vasectomies performed at a New Delhi hospital is evaluated. The program, which was conducted during 1964-1967, involved: 1) training and orientation courses for physicians, nurses, and ministerial staff in surgical sterilization and other family planning methods; 2) the education of all hospital patients and visitors in family planning; and 3) easy access and availability of sterilization services and other family planning methods. The number of tubectomies and vasectomies performed remained fairly constant until 1966, when the incidence increased about 2 1/2 times in 1 year. Vasectomy reached a plateau in 1967-1968, and then declined almost as rapidly as it rose to preprogram levels. Tubectomy, however, continued to increase until the incidence in 1972 was almost 10 times that of 1964. The decrease in the incidence of vasectomy may be attributable to changes in personnel and the discontinuation of the intensive education program. Postpartum family planning education, and the insistence on sterilization of abortion seekers with 3 or more children were largely responsible for the increase in tubectomy.