Kohli went a long way towards justifying his decision to bat first with a typically assertive innings of 120 off 125 deliveries.
Gayle, who has two triple centuries in the longest format, played the last of his 103 Test matches almost five years ago.
Gayle, who has reversed a decision to retire from ODIs after the World Cup, occupied 31 deliveries before being dismissed.
Half-centuries by captain Virat Kohli and wicketkeeper Rishabh Pant paced India to a comfortable seven-wicket victory over the West Indies.
Pollard denied committing the offence due to which the matter was finally resolved following a formal hearing.
"Saini was found to have breached Article 2.5 of the ICC Code of Conduct for Players and Player Support Personnel."
Virat Kohli has backed the incumbent Ravi Shastri for the coaching role.
Rohit Sharma led from the front as India defeated the West Indies in a rain-affected second fixture of the three-match T20 International series.
"We can only hope he kicks on from there. It wasn't the best pitch because of all the weather around."
Hasan Ali getting ready for his wedding
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Anderson misses out as England announce unchanged squad for third Test
Shahid Afridi still working hard
Concussed Smith's substitute Labuschagne shines as Australia draw second Ashes Test
Zalmi Chairman receives a prestigious civilian award
Australia withstand Archer pace assault to maintain series lead
Amir performs in his career's final red-ball game
Styris reveals two of the most gifted Indian all-rounders
PSL 2019 - PSL Schedule with all PSL 4 matches and schedule for all franchises