Bharatiya Janata Party leader from Rajasthan, Ghanshyam Tiwari, on Monday resigned from the party, accusing Chief Minister Vasundhara Raje of corruption and nepotism. Tiwari, a five-time MLA, has been loggerheads with the Raje government over several matters, including corruption, farmers problems, and demand for reservation for the upper caste.

“The chief of state government in Rajasthan in collusion with some ministers and bureaucrats has been robbing the state and the level of corruption has scaled a new high,” Tiwari wrote in his resignation letter to BJP National President Amit Shah. Tiwari also accused Shah of inaction.

Addressing a press conference later on Monday, Tiwari said the country was going through a phase of “undeclared emergency” for the last four years and he was ready to fight against it. “Undeclared emergency is more dangerous than actual emergency,” he told reporters, according to PTI. “I have witnessed both the phases and I am tendering my resignation from the party [BJP] to fight against it.”

In 2017, the BJP’s national disciplinary committee issued show-cause notices to Tiwari, who represented Sanganer constituency, after he alleged that the state party unit had become a place for mafias and sycophants, PTI reported. Tiwari said he will contest from the same constituency in the upcoming Assembly elections in Rajasthan from his son’s newly-floated party Bharat Vahini Party. The polls are scheduled for later this year.