The incident took place around 12.30 am in New Prabhadevi area in which Sena functionary Santosh Talavane was allegedly attacked by Mahesh Sawant and 30 others, police said.
Shinde, with 12 of the 19 Lok Sabha members from Shiv Sena by his side, had named Shewale as the leader of the party in the Lok Sabha and Bhawana Gawale as the chief whip. The Speaker had approved these names.
The CJI-led bench on July 11 had granted interim relief to the Uddhav Thackeray faction MLAs by asking Maharashtra Assembly Speaker Rahul Narwekar not to proceed with the plea seeking their disqualification.
The Thackeray faction has been filing several pleas in the top court after the rebel Sena MLAs led by Eknath Shinde formed a coalition with the Bharatiya Janata Party (BJP) to form the government in the state.