During the period 1957 to 1962, postpartum sterilization was performed on 5968 patients. Of these, 1055 patients (34%) were followed up in 1965. The patients were interviewed by a doctor, and a detailed history was taken followed by a general abdominal and pelvic examination, including a cervical smear for exfoliative cytology. The commonest indication for postpartum sterilization was grand multiparity (973 or 93.2% of the patients had 5 or more chldren), followed by obstetrical or medical indications (eg, toxemia of pregnancy; antepartum hemorrhage); ceasarian section, and socioeconomic reason. Average age for postpartum sterilization was 33 years; parity was 6.0, and number of living children at time of interview was 5.7. Tubal ligation by Pomeroy's technique using No. 2 plain catgut was done in 1049 cases. The findings show that postpartum tubal ligation does not significantly affect body weight nor the general state of health. No alteration in the menstrual pattern was observed among half of the patients. Minor menstrual disorders were observed in the other half. 4 cases had severe menorrhagia requiring hysterectomy. No gross pelvic pathology was seen. Psychological effects were also minimal and most patients had satisfactory marital relationship. 98.7% were happy about the operation. It was concluded that postpartum sterilization is a safe and reliable contraceptive method for women desiring permanent contraception.