demonstrators protest in favor of using the punjabi language as their mother tongue in the census 2001 in the town of mohali on february 11 2001 india with a population of one billion is the second most populous country in the world after china the indian census is taken once every ten years the placard reads census 2001 done with pride we are punjabs write with your mother tongue jsgcc 2d487ng.jpg from les inséparables 2001 View Photo