Having too many children. Are you really that naive. India had 84 % hindus at independence and according to the last census has 80.5%. So I am sure when the population grew from 30 crores to 100 crores Hindus had a big part to play as well.
Instead of just listening to politicians and moronic priests do your research first...
Just to help a blind man:
please visit the following sites to do your research:
