Religion should be sanatan.

 Religion is sanatan.

Religion is not communalism. 

And it is anyone personal problem to associate hindutva with sanatan.

Sanatan is the root of Hindutva.

And for ur knowledge.

Sanatan is a concept for every religion i.e every religion should be sanatan,not communal.

Sanatan means timeless, beyond the dimension of time, everlasting, something eternal.

Mind u religion and sanatan are not same. 

Sanatan by principles can't be called a religion. Religion revolves around rule and laws created by the presumed God only. Sanatan is like universal philosophy. Every principle which is righteous is respected and called for following. 

Sanatan can't be religion. And religion is for only a set of humans, not all humans. Sanatan is for all humans as its righteousness it talks about,not laws by one God alone.

Communalism is an outcome of religion.Religion never preaches to be communal.But we have become communal.

So it's become important for religion to be like sanatan.