Pritam becomes the ninth new arrival at Hyderabad FC this season, and the sixth domestic player to join the club.
The duo, who joined from NorthEast United, have each signed three-year contracts till the end of the 2023-24 season.
Javi Hernandez has an experience of playing 37 matches in the ISL and even scored two goals in the final of the 2019-20 season against Chennaiyin FC.