Complex sentence: Hemu is known to be born in Rewari in south Haryana, started his career as a supplier of merchandise especially, cannons and gunpowder to Sher Shah Suri's army, during the 1540s.
Split into simpler sentences: Hemu is known to be have born in Rewari in south Haryana. He started his career as a supplier of merchandise especially, cannons and gunpowder to Sher Shah Suri's army, during the 1540s.