Mohamed Amaan led from the front with an unbeaten century, while KP Karthikeya and opener Ayush Mhatre made fifties to hand India a comfortable 211-run victory over minnows Japan in the Under-19 Asia Cup on Monday. Amaan slammed an unbeaten 122 off just 118 balls, a knock studded with only seven boundaries, after India were invited to bat. Besides Amaan, Karthikeya made 57 off 49 balls with the help of five fours and one six, while Mhatre's fiery 29-ball 54-run knock featured six boundaries and four hits over the fence. C Andre Siddarth (38), Hardik Raj (25 not out), and Vaibhav Suryavanshi (23) also played useful knocks to help India post a mammoth 339 for 6 in their 50 overs.