Rahul Chahar performed well in this tournament for MI to be honest and also they got all rounders who can complete the overs in case if it is needed.I think the unsung hero of SRH called Sandeep Sharma set this match onto their side because he got three big wickets and two inform left handers which helped the whole bowling unit to perform well.
Rahul Chahar is a promising young player. He has performed well, but it is impossible to compare the impact from his bowling, to what others such as Rashid Khan and Varun Chakravarthy had. In the middle orders, other spinners such as Rashid, Varun, Chahal.etc were able to take crucial wickets and slow down the run rate. Rahul Chahar wasn't that effective in this aspect.