Complex sentence: Tapan Raychaudhuri (b.8 May 1926; age 87) is an Indian historian specialising in British Indian history, Indian economic history and the History of Bengal.
Split into simpler sentences: Tapan Raychaudhuri (b.8 May 1926; age 87) is an Indian historian. His areas of interest are British Indian history, Indian economic history and the History of Bengal.