ABSTRACT
Twinning frequency in India has been studied on data derived from primary and secondary sources. Preliminary results on twinning rates in the state of Punjab have presented from fertility history of 101 Gujjar mothers and from delivery records of a public hospital for the year 1987. The former sample showed much higher twinning rate (30.2 per 1000 births). (19.2 per 1000 births). The above results were compared with those from other Indian studies. Further 51 regional samples drawn from different Indian states were analyzed for studying regional trends. Though no definite trend emerged from the analysis, the twinning rate was the highest in Uttar Pradesh and the lowest in Tamilnadu. The Indian data also revealed secular trends in twinning rates, as seen in many other countries.