The strength of security forces was augmented in vital installations like Raj Bhavan, Civil Secretariat, Assembly House and vehicles entering the state capital from other places were being checked, SP, police Control, Harkumar Debbarma said.
Some temporary check posts were also been built in all the district headquarters including the capital city here.
All police stations in Tripura were put on maximum alert and BSF was alerted so that no insurgent could cross over the border from their hideout in Bangladesh.
Police said the Agartala airport and all the rail stations were also put under high alert and security was tightened.
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Meanwhile the rail police arrested one militant along with 305 rounds live cartridges from Badarpur rail station in neighbouring Assam on Saturday last. He had plan to incite violence before the Independence Day.
Police said, he was moving towards Agartala and during interrogation he confessed that he had plan of sabotage before the Day.