Complex sentence: According to the 2011 census, 78.35% of the population of India practice Hinduism and 14.88% adhere to Islam, while the remaining 6.77% adheres to other religions (Christianity, Sikhism, Buddhism, Jainism and indigenous ethnic religions).
Split into simpler sentences: According to the 2011 census, 78.35% of the population of India practice Hinduism. Islam (14.88%), while the remaining 6.77% adheres to other religions (Christianity, Sikhism, Buddhism, Jainism and indigenous ethnic religions).