The Indian colts had earlier won the first match by 82 runs.
Chawla's decision to bat first almost boomeranged with India reduced to 15 for two with both the openers returning to the pavilion before Tanmay Srivastava (53) and Virat Kohli (45) stemmed the rot and put some beef in the innings.
They forged together a 88-run partnership for the third wicket before Imad Wasim came up with a two-wicket burst to return both the players. Tanmay's sedate half century came off 84 balls with three boundaries in it while Kohli took 81 balls for his 45-run knock that also had three shots to the fence.
Chawla then took to the field and stepped up the pace in his 57-ball knock of 40 but once he departed, there was a mini batting collapse and India were eventually all out for 224 with one ball to go.
For the hosts, Riaz Kail was the most successfull bowler, claiming 4-42, while Imad Wasim scalped 3-56.
Chasing a victory target of 225, Pakistan never really had solid partnership up in the batting order. Riaz Kail (38) and Imad Wasim (62) added 63 runs for the sixth wicket and the latter was typically aggressive. The duo threatened to take away the match from India before Sumit Sharma got the better of Riaz's defence and Imad's innings was cut short when he stepped out to hit Chawla and was beaten by the flight and perished stumped.
Pakistan finished their innings at 217 for nine in 50 overs, seven runs behind the Indian total.
Chawla conceded 50 runs in his 10 overs and claimed three wickets.