In his letter to Chandrakant Patil, he said that he was resigning from the state BJP unit and also from the primary membership of the party.
Thackeray is scheduled to visit the flood-affected areas in Solapur district on Monday.
Patil claimed the decision to postpone MPSC exams should have been taken much earlier if it had been done for the novel coronavirus outbreak.
Chandrakant Patil said his party cannot form a government with either of the three parties in the ruling coalition, but that they are acting as an active Opposition.
Maharashtra BJP president in trouble over suppressing details of firms owned by him in election affidavit
It was alleged that Patil, who was elected from Kothrud state assembly constituency in 2019, did not mention the details of his two business firms and their total revenue generation.
Pankaja Munde, daughter of BJP stalwart late Gopinath Munde, had lost the Parliament seat to her cousin and NCP rival Dhananjay Munde in the state assembly polls held last year.
The protests were led by state unit chief Chandrakant Patil who took part in a demonstration in front of Kolhapur collectorate.
Denied an MLC ticket in the recent legislative council elections, Eknath Khadse said he and the late Gopinath Munde gave their blood and sweat for the growth of the BJP but he has now been ignored
Notably, it was the Shiv Sena, which had first made the demand to rename Aurangabad as Sambhajinagar decades ago.
The minister had yesterday said that the Maratha community would get nothing by resorting to violence, as the Maharashtra State Backward Class Commission is conducting a sample survey.
A senior BJP leader today warned the Congress could come to power in Maharashtra if the BJP and the Shiv Sena fail to form an alliance in the next Assembly elections.