A magnificent unbeaten 111 by Unmukt and his unbroken partnership of 130 runs with Smit Patel, India overhauled a competitive target of 226 on a bouncy strip with 14 balls to spare.
It was one of the best centuries one could have witnessed at the junior level as Unmukt hit 7-fours and as many as 6-sixes during his 130-ball knock. He completed his century with a 6 over extra cover off Alex Gregory.
Prior, India fritter away the early advantage as defending champions Australia recovered from a unsteady start to post a competitive 225/8.
Electing to field after winning the toss among overcast conditions, the Indians had the Aussies on the mat at 38/4 before host skipper William Bosisto (87 not out) rebuilds the innings with the assist of some notable contributions down the order.
Both teams named the same XIs that had got them through the knockouts. Whereas Australia, aiming for a fourth title, entered the final undefeated, India had lost one game in the first group stage to the West Indies.