Complex sentence: Balachandra Rajan (1920--2009) was an Indian diplomat and a scholar of poetry and poetics, focusing particularly on the poetry of John Milton, was Professor Emeritus of English at the University of Western Ontario.
Split into simpler sentences: Balachandra Rajan (1920--2009) was an Indian diplomat and a scholar of poetry and poetics. Focusing particularly on the poetry of John Milton, he was Professor Emeritus of English at the University of Western Ontario.