Leggie Ansari is back into the attack. Sundar takes a single to long-off to bring up GT's 100, in the 13th over.
Gill cuts the next ball past point, placing the ball perfectly in the gap for a four, to complete his fifty from 36 balls.
Singles off the last two balls make it eight runs from Ansari's third over as Titans continue to cruise towards the target.
Shami comes back into the attack and he makes the breakthrough with the key wicket of Sundar.
The left-hander cuts the short ball uppishly as Aniket rushes in from deep point and dives forward to take the catch inches from the gorund.
But the umpires want to check the catch as they refer it to the TV umpire.
The TV umpire rules that his fingers are underneath the ball but Sundar believes that the evidence is not that conclusive.
Should the benefit of doubt have gone to the batter? A controversial call to spice up an otherwise drab contest.
He walks back disappointed after a match-turning knock of 49 from 29 balls, with five fours and two sixes, narrowly missing out on a fifty on debut for his new team.
He put on 90 from 56 balls to put Titans firmly in control in the run chase.
GT make a change as Sherfane Rutherford comes in as the Impact Player, replacing Ishant in the playing XI.
Left-hander Rutherford walks in at No 5. He top edges the pull shot as the ball flies over the wicketkeeper for a four to get off the mark and keeps strike with one from the last ball.