Security has been beefed up in Tripura after the Union Home Ministry alerted north-eastern states over possible terror attacks ahead of the Independence Day celebration.
The Home Ministry directed the north-eastern states to maintain strict vigil and thwart any attempt by separatist outfits to create violent situation.
The Border Security Force (BSF) has further tightened vigilance along the India-Bangladesh border to prevent trans-border movement of militants.
Additional troopers have been deployed and day-night patrolling has been intensified to foil trans-border movement.
The Central Reserve Police Force (CRPF) and other paramilitary personnel, accompanied by bomb disposal and dog squads, are continuing search operations at the airport, hotels, bus and railway terminals, markets, important locations and national highways.
The Northeast Frontier Railway has also taken up security measures for the safety and security of passengers.
Four northeast states - Tripura, Meghalaya, Mizoram and Assam - share 1,880-km-long border with Bangladesh, while India and Bhutan share a 643-km unfenced border.
Four states of the region - Mizoram, Manipur, Nagaland and Arunachal Pradesh - also share 1,640-km unfenced border with Myanmar.
Arunachal Pradesh also shares a 1,080-km unfenced border with China.
Several separatist outfits are reportedly trying to disturb the 70th Independence Day celebrations, especially in Assam.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)