Pant, who had scored a 32-ball hundred against Himachal Pradesh -- the fastest T20 ton by an Indian and second overall -- at the same Feroze Shah Kotla Stadium two days ago, hit 64 off 32 deliveries to held Delhi notched up 225 for 8 after being put into bat.
The 20-year-old wicketkeeper batsman had 11 fours and one six in his aggressive knock at the top of the Delhi innings.
But Delhi recovered with some useful contributions from Nitish Rana (30), Dhruv Shorey (25) and captain Pradeep Sangwan (29) to post a big total on the board.
For Services, Nitin Yadav was the most successful bowler with three wickets for 53 runs while Nitin Tanwar took two wickets.
More From This Section
Chasing 226 for a win, Services were reduced to 81 for 5 in the eighth over but some fine batting from opener Ravi Chauhan (53 off 23 balls), Nakul Sharma (53 off 36 balls) and Vikas Hathwala (36) gave them some hope.
For Delhi, it was a combined bowling effort with Kulwant Khejroliya bagging three wickets for 38 runs. Sangwan and Vikas Tokas chipped in with two wickets apiece while Pawan Negi took one.
Brief Scores:
Delhi: 225 for 8 in 20 overs (Rishab Pant 64, Nitish Rana 30; Nitin Yadav 3/53)
Services: 203 all out in 19.1 overs (Ravi Chauhan 53, Nakul Sharma 53, Vikas Hathwala 36; Kulwant Khejroliya 3/38).