Riding on the duo's fine knocks, Reliance mustered a massive 225 for 5 from 20 overs and then restricted their rivals to 198 for 7 in their league match held at the D Y Patil Stadium in Navi Mumbai.
After electing to bat, Reliance lost openers Sehwag and Shikhar Dhawan with 91 on board before the pint-sized Patel clouted seven sixes and six fours in his knock to power his side past 220.
In reply, Jain Irrigation's batsmen fell at regular intervals, thanks to some accurate bowling by Rishi Dhawan and Yuzvinder Chahal, who bagged two wickets apiece. Knocks of 72 by Shashank Singh and 48 by Bravish Shetty went in vain.
In another match that went down the wire and was decided in the last over, BPCL beat hosts D Y Patil B by six runs.
Batting first, BPCL scored 179 for 5 in 209 overs with Manish Pandey hitting 50 from 37 balls. In reply, D Y Patil B made 173 for 6.
In other games, Mumbai Customs suffered their second loss on the trot, losing to State Bank of Hyderabad by 22 runs, while Canara Bank defeated ONGC by 40 runs.
Scores: State Bank of Hyderabad 165 for 2 (T Suman 91; S Anoop Pai 61 not out) beat CBES Mumbai Customs: 143 all out in 19.3 Overs (Atul Ranade 39, Sachin Wagh 27; Ravi Kiran 4 for 22, Vishal Sharma 2 for 18).
Canara Bank 183 for 6 (Deepak Chougule 80 not out, Abrar Kazi 30; Dhruv Singh 2 for 29) beat ONGC 143 for 6 Mayank Tehlan 42, Dhruv Singh 31 not out; Bharat B N 2 for 31, Raju Batkal 2 for 21).
Reliance 225 for 5 (Virender Sehwag 42, Parthiv Patel 92, Sunny Singh 36) beat Jain Irrigation 198 for 7 (Shashank Singh 72, Bravish Shetty 48; Rishi Dhawan 2 for 42, Yuzvender Chahal 2 for 37).
