If you are not religious it means you don’t believe in God. Communalism is a social phenomena based on the barbaric attitude of some religious communities. This attitude and activities that follow it harm the social system and the relations among the different religious communities.

So, you should also bother about communalism to make peace in the society. Secularism means there is no state religion instead the state respects all religions equally. So, whether you are religious or not, you should also bother about the secularism so that there will not be any favour or discrimination against any religion. It will maintain a healthy atmosphere in the country.