As many as 10,600 members of 2,800 families were evacuated after their houses had been submerged by the floodwater and shifted to 60 relief camps across the state, he said, adding that 14 teams have been engaged in rescue operations.
The incident was reported amid political violence and a BJP-TMC faceoff in Tripura.
At least 19 people including Tripura Pradesh Congress Committee chief Birajit Sinha were injured in a clash between Congress and Bharatiya Janata Party supporters in front of Congress Bhavan in Agartala on Sunday.
The opposition Trinamool Congress and Communist Party of India-Marxist failed to open their account in the AMC.
The run-up to the polls, which should have been a humdrum affair, became a cause celebre after it was marred by violence, arrests, sit-ins in far-away Delhi and a Supreme Court intervention asking officials to ensure peaceful polling.
The new BJP government in Tripura has renamed a lane leading to the official residences of the CM after party ideologue Syama Prasad Mookerjee.
Almost all states and Union Territories have extended the curbs which they first started imposing in mid-April as the second COVID wave hit the country.
The arrest and an alleged attack on TMC workers by unknown persons whom the Trinamool Congress believes to be Bharatiya Janata Party supporters happened barely 24 hours before the Mamata Banerjee-led party's national general secretary Abhishek Banerjee is slated to reach Agartala to 'stand beside attacked party workers'.
The government has announced an interim relief of Rs 1 lakh for the next of kin of the deceased.
With COVID cases declining, Delhi will see further relaxation in lockdown, including reopening of markets and malls and resumption of metro services, from June 7 while Maharashtra will implement a five-level plan to ease curbs based on weekly positivity rate and occupancy of oxygen beds in districts.