In the Group A match, Hyderabad were restricted to 131 for seven in the stipulated 20 overs after choosing to bat at the Vidarbha Cricket Association Ground.
In reply, Gujarat chased down the target with three balls to spare, reaching 134 for seven in 19.3 overs.
During his blazing knock, Parthiv struck eight boundaries and three sixes, and put on 99 runs for the opening wicket with Priyank Kirit Panchal, who made 32.
Jasprit Bumrah and Hardik Patel picked up two wickets apiece for the visiting side.
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For Hyderabad, skipper Hanuma Vihari top-scored with 32, while Tanmay Agarwal, Akash Bhandari and B Sandeep contributed 25, 24 and 20 respectively.
Hyderabad: 131/7 in 20 overs (Hanuma Vihari 32; R P Singh 3/15)
Gujarat: 134/7 in 19.3 overs (Parthiv Patel 70; B Sandeep 2/14, Mohammed Siraj 2/29).