Madurai, Jan 25 (Reporter) A comprehensive security cover has been thrown over the Southern districts and along the entire South Eastern Coast of Tamil Nadu on Saturday, barely a day ahead of the country’s 76th Republic Day celebrations. Though there is no specific input to suggest a terror threat, appropriate additional protective security measures must be maintained for a period of time, police sources said. Heightened security cover has been put in place at the Kudankulam Nuclear Power project (KKNPP) and Indian Space Research Organization Propulsion Complex (IPRC) at Mahendragiri in Tirunelveli district, V.O.Chidambaranar Port at Thoothukudi, Madurai and Thoothukudi airports, besides the historic temples, major railway stations, bus stands, railway over bridges and all the vital installations as part of the security arrangements. Meanwhile, a bomb threat issued to Tirunelveli Railway Junction this morning turned out to be a hoax. An unidentified man contacted the police control room in Chennai and stated that a bomb would explode in the railway junction, following which the railway protection force (RPF) and local police conducted searches. No explosive material was found. A similar bomb threat issued to Thoothukudi airport on Friday also turned out to be a hoax. An anonymous email received by the airport authorities, prompted the security personnel to conduct intensive checks at the airport premises. Reports said a multi-layered security cover was put in place in the Indian territorial waters along the south eastern coast supported by “air and sea” surveillance by the Indian Navy, Indian Coast Guard and Tamil Nadu Marine Police. The Navy and ICG were maintaining a close vigil along the International Maritime Boundary Line to thwart any kind of intrusion by anti-social elements via sea route. Security measures have also been beefed up at Thanjavur Air Force Station, Tiruchirapalli International Airport and all other vital installations in the Central region of the State. The RPF personnel and Bomb Detection Squad carried out checks at the Tiruchirapalli railway junction premises. The luggage of passengers was also subjected to thorough checks before entering into the station...////...