The Uddhav Thackeray-led Maha Vikas Aghadi government of the Shiv Sena-NCP-Congress alliance may face a floor test in the Assembly on Saturday, sources said.
The floor test is "most likely" to be held on Saturday, the Vidhan Bhawan sources told PTI.
Governor B K Koshyari has asked Thackeray to prove the majority by December 3.
Thackeray, who is also the Shiv Sena president, was sworn-in as the chief minister on Thursday evening and hours later, presided over his government's first cabinet meeting.
Besides Thackeray, six other ministers - two each from the Sena, the Congress, and the NCP - also took an oath.