Complex sentence: Born into a Tamil family in Vellore, Viswanathan moved to Kolkata, West Bengal at an early age and had his education at St. Xavier's College, Kolkata and joined the college as a professor in English.
Split into simpler sentences: Born into a Tamil family in Vellore, Viswanathan moved to Kolkata, West Bengal at an early age. He was educated at St. Xavier's College, Kolkata and joined the same college as a professor in English.