Complex sentence: Many people of the community started to follow Pushtimarg sect of Hinduism founded by Vallabha Acharya in early 1500 A.D., who worship Shrinathji, a seven year old child-deity form of Shri Krishna, which had spread in Gujarat by first quarter of sixteenth century.
Split into simpler sentences: Many people of the community started to follow Pushtimarg sect of Hinduism founded by Vallabha Acharya in early 1500 A.D., who worship Shrinathji, a seven year old child-deity form of Shri Krishna. This sect had spread in Gujarat by first quarter of sixteenth century.