Biplab Deb: The resignation comes amid rumours of infighting within the BJP's state unit.
Tripura Chief Minister Biplab Kumar Deb on Saturday said he has submitted his resignation to Governor SN Arya. The shock resignation comes ahead of state polls next year.
Mr Deb made the announcement after meeting the governor at the Raj Bhavan.
"Party wants me to work to strengthen the organisation," news agency PTI quoted Biplab Deb as saying.
The resignation follows reports of infighting within the BJP's state unit.
The BJP legislature party in Tripura, say reports, is to meet later today to elect its new leader.
Senior BJP leaders Bhupender Yadav and Vinod Tawde, who are already in Tripura, have been appointed as observers for the election of the legislature party leader.
Besides them, the party's state incharge Vinod Sonkar will attend the meeting.
Biplab Deb became the first BJP Chief Minister in the state in 2018, ending the 25-year-rule of the Communist Party of India.