It was Mumbai's fourth straight win and propelled them three spots from sixth in the 10-team table led by Gujarat Titans.
Gill anchored the innings with fluency, sharing a 114-run stand with Sai Sudharsan (52) as the away side posted a commanding 198 for three.
The left-handed Sudharsan smashed 82 off 53 balls as Gujarat posted 217-6 after being invited to bat first at their home at the world's biggest cricket stadium in Ahmedabad.
Needing 22 off the final two overs and six off the last six balls with one wicket remaining, Ashutosh stood strong and hit the winning six.
It was Mumbai's fourth straight win and propelled them three spots from sixth in the 10-team table led by Gujarat Titans.
Gill anchored the innings with fluency, sharing a 114-run stand with Sai Sudharsan (52) as the away side posted a commanding 198 for three.
The left-handed Sudharsan smashed 82 off 53 balls as Gujarat posted 217-6 after being invited to bat first at their home at the world's biggest cricket stadium in Ahmedabad.
Needing 22 off the final two overs and six off the last six balls with one wicket remaining, Ashutosh stood strong and hit the winning six.
