Shreyas, back after the ODI series in South Africa, stroked a 35-ball 57 with three boundaries and four sixes to star in BPCL's 84-run win over Mumbai Police at the University Ground.
In a side featuring other players like Mandeep Singh (43) and Abhishek Nayar, BPCL skipper Shreyas stood out with the bat as they posted an impressive 196-6 in their 20 overs.
Mumbai's Shivam Dubey, in an all-round act, first struck 34 off 15 balls and then picked 3-7 in three overs to star in his side's win.
In reply, RBI struggled to get going with only opener Sumit Kumar (60: 38b, 4x4, 3x6) holding his own.
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Umesh Yadav tried using the long handle but he could only manage 16 off eight balls, with one four and one six, as his side lost by eight runs.
In the afternoon at the University Ground, Mumbai Ranji Trophy skipper Aditya Tare led from the front with an unbeaten 83 off 55 balls, with six boundaries and a six, as Indian Oil chased down Central Railway's total of 155-7 with a ball and three wickets to spare.
The stars of this win were Rinku Singh (78: 44b, 7x4, 4x6) and fast bowler Ishwar Choudhary's 3-31.
BRIEF SCORES Collage Group 167-8 in 20 overs (Kshitiz Sharma 66, Chetan Bist 39; Umesh Yadav 3-19) defeat RBI 159 in 19.3 overs (Sumit Kumar 60, Sumit Ghadigaonkar 22; Parvinder Awana 3-25, Arun Chaprana 3-33)-by eight runs DY Patil A 158-7 in 20 overs (Rinku Singh 78, Shubham Ranjane 25; Drushant Soni 3-24, Chintan Gaja 2-27) btWestern Railway 134-7 in 20 overs (Nikunj Mohite 44, Vinayak Bhoir 28; Ishwar Choudhary 3-31, Prateek Dabholkar 2-15)-by 24 runs