NCP supremo Pawar was elected unopposed as President of MCA at the previous elections but there will be a contest unless either of the two withdraw their nomination before the June 13 deadline.
Incidentally Patil - who heads the Cricket First group in the MCA elections and is also the President of the D Y Patil Sports Academy in Navi Mumbai, - has filed his nomination only for the post of the President, according to MCA sources.
Vengsarkar has been fielded by the ruling Bal Mahaddalkar group, which is also backing BJP MLA Ashish Shelar and Vinod Deshpande for the same post with one of the trio set to withdraw from the contest to elect two VPs.
Shiv Sena MP Rahul Shevale, along with the party's MLA Pratap Sarnaik, have filed nominations for the Vice-President's post along with former cricketers Abey Kuruvilla, Lalchand Rajput and Sanjay Patil - from Cricket First group.
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Unmesh Khanvilkar and Sanjay Patil, from Cricket First group, have filed nominations to contest for the same posts.
Ex-cricketers Mayank Khandwala and Rajput have also filed nominations (from Cricket First) for the treasurer's post along with Nitin Dalal and Deshpande of the Mahaddalkar panel.
Cricketer-turned coach Pravin Amre has entered the fray contesting for the eleven-member committee and is backed by Cricket First group, it was learnt.