Complex sentence: Vallampadugai Srinivasa Raghavan Arunachalam is an Indian scientist who was conferred Padma Bhushan and Padma Vibhushan for his contribution to Indian science.
Split into simpler sentences: Vallampadugai Srinivasa Raghavan Arunachalam is an Indian scientist. He was conferred Padma Bhushan and Padma Vibhushan for his contribution to Indian science.