Vasan Healthcare has raised $50 million (Rs 300 crore) from its existing investors Government of Singapore Investment Corporation (GIC), Sequoia Capital, and WestBridge Capital..This values the chain at over $600 million (Rs. 3,600 crore), reports ToI..Amarchand Mangaldas acted for Vasan Healthcare with a team led by Partner Arjun Lall..Samvad Partners acted for GIC with a team led by Partner Vineetha MG along with Senior Associate Apurva Jayant and Associate Anirudh Srinivas..GIC had invested $100 million in Vasan healthcare almost two years ago, while Sequoia and WestBridge had together put in $50 million across three rounds of funding..The $50 million of fresh funds will be used for expanding the reach of the chain as the group looks to diversify into other areas of healthcare, according to ToI.