Young opener Yashasvi Jaiswal was the big winner following his 141 runs for the series as he rose four places to sixth overall behind No.1 ranked batter Travis Head and second-placed Suryakumar Yadav.
The Indian opening pair made a mincemeat of a 153-run target with Yashasvi turning on the heat on the Zimbabwe bowling before Gill joined the party but let his left-handed opening partner lead the proceedings against a hapless home attack.
The arrival of Jaiswal, Sanju Samson and Shivam Dube, all of whom were part of the main team during the T20 World Cup-winning run last month, gives the Indian team a formidable look in the most important game of the series as the visitors will look to take advantage of the booster by taking a lead in the five T20I series, currently levelled at 1-1.
Jaiswal, who rose through the ranks overcoming numerous obstacles, said he is used to putting in the hard yards since childhood, and wants to continue the same process to capitalise on the opportunity of playing at the highest level.
At stumps, Shubman Gill walked back undefeated on 65 with night watchman Kuldeep Yadav (3 not out) in company as India raced to 196 for 2, for an overall lead of 322 runs.
Twenty-two minutes before stumps on the second day, India came out to bat for a second time and the opening pair of Rohit Sharma (13 not out) and Jaiswal (15 not out) batted fluently to add a quickfire 28 and stretch their overall lead to 171 runs.
Meanwhile, left-hander Shivam Dube shot up from 265th to 58th place with two consecutive unbeaten knocks of 60 and 63.
The Royals put themselves in contention for the Playoffs spots as they moved to fifth on the table with this four-wicket win.
Former Union Minister and former JD-U leader R.C.P. Singh also claimed that Nitish Kumar cheated the mandate of 2020 Assembly election by breaking the alliance with the BJP.
