he is right, if he had said this 30 years back. Our population replacement level is below 2. Just look around the office were we work, you will find atleast half of them in thier late 20s either unmarried or childless. That means if lucky they will have 1 kid.
Population increase in gradual. But collapse is faster. Gvmt says we will peak by 2050. If my guess is right, we will peak by 2035. By 2045 we will start seeing the decline in numbers. By 2060, we will be looking at collapse of the Hindu population. a Simple reverse calculation is enough to arrive at this numbers. Our population growth peaked in mid 1990. Since then the Fertility rate has been falling and now at 1.96. below the replacement level of 2.