Complex sentence: Later, he worked on Smart Grid, Microgrid and Renewable Energy and how they could be integrated into the main electrical grid of a power system; earlier, at IIT Kanpur, he encouraged research on "Control and Power".
Split into simpler sentences: Later, he worked on Smart Grid, Microgrid and Renewable Energy and how they could be integrated into the main electrical grid of a power system. Earlier, at IIT Kanpur, he also encouraged research on "Control and Power".