The Goa boy has found a place in both these teams, according to a media release here today.
The World Championship is to be held in New Zealand from July 19 to 24, while the Asian Championship is scheduled in Amman, Jordan from August 15 to 19.
Fadte would also be part of a camp in Egypt from June 20 to July 10.
He was selected in the two squads following selection trials in Chennai last month (under l7) and from June 1 to 4 (under 19).
The teams: Boys U-19: Abhay Singh, Aditya Raghavan, Tushar Shahani, Yash Fadte, Veer Chotrani, Aryaman Adik.
Boys U-17: Saksham Choudhary, Tushar Shahani, Yash Fadte, Veer Chotrani.