There was no respite for the Australians even after their departure with Shubhman Gill tormenting the bowlers with his 63-run knock.
Nagarkoti hit the deck consistently at a speed in the range of 150kmph and was well supported by Mavi, who also clocked 145 at times. The two pacers tested Australians with their nagging off-stump line.
Jonathan Merlo (38) tried his best in the middle order and stumper Baxtor Holt (39) resisted in a rearguard fight but both were undone by Mavi.
"I think it was a good start for us and a positive one for us in the tournament," said skipper Shaw.
"Our mind was clear - just wait for the loose balls. Really disappointed (at losing a chance to get a century), for Manjot as well, we have learnt something from this innings and will play better in the next innings," he added.
The splendid top-order batting vindicated Shaw's decision to bat in their tournament-opener.
It was not that Shaw and Klara plundered boundaries, instead they raised their knocks with some stupendous risk- free batting.
Shaw, though, missed out on a century by six runs as he was caught behind off Will Sutherland, son of Cricket Australia CEO James Sutherland.
The Indian captain faced 100 balls and scored eight boundaries, including two sixes in his knock.
His opening partner also missed out on a ton, falling for 86 which came off 99 balls with 12 shots to the fence and on over the ropes.
There were no steady partnerships after their departure even as Gill kept one end solid with his 54-ball knock which had six fours and a six.
The middle order batsmen lost their wickets, trying to accelerate the run-rate as Himanshu Rana (14) and Anukul Roy (6) fell cheaply.
Abhishek Sharma though managed to come up with a 8-ball 23-run cameo which propelled India past the 300-run mark. He hit two sixes and as many fours.
As Indian batsmen looked for some quick runs, Australian medium fast bowler Jack Edwards ended up taking four wickets. It was Edwards, who dismissed Rana and then later added wickets of Abhishek and Shiva Singh (10) to his tally.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)