ANSWER: 2.3%
Explanation:
The proportion of population in India is Hindu -96.63 crores (79.8%), Muslim-17.22 crores (14.2%), Christian -2.78 crores (2.3%), Sikh-2.08 crores (1.7%), Buddhist-0.84 crores (0.7%), Jain-0.45 crores (0.4%), Other Religions & Persuasions-0.79 crores (0.7%), Religion Not Stated-0.29 crores (0.2%).