The 2011 census data is now public. It’s a treasure trove of information, especially if you compare it with earlier census data, starting with 2001. We are just getting started and decided to first see how religious communities are growing (or not) in Kerala. We will be updating as we go along, you can see our calculations worksheet here. If you would like to find specific data correlation, please leave them in the comments.
People preferring not to state religion has increased the most in percentage terms, 251%. In actually numbers, more than a million new Muslims were added to population in the 10 years (2001 to 2011).