Four persons engaged by a public sector construction company were kidnapped by insurgents of Borok National Council of Tripura (BNCT) in North Tripura's Tlangsang, police said on Wednesday.
"National Projects Construction Corporation Limited's (NPCL) workers Jyotish and Hiten Roy and drivers Sanjib Debbarma and K Govinda were kidnapped while on their way to Khangthalang on Indo-Bangla border to erect barbed wire fence," Superintendent of Police in North Tripura district U K Majumder said.
Jyotish escaped from captivity and returned to Khangthalang outpost of Border Security Force last night.
Jyotish and Hiten Roy hail from Ranguli in West Bengal's Siliguri. K Govinda is a resident of Malgunda in Andhra Pradesh and Sanjit is from Nalkata of Tripura's Dhalai district.
An operation to rescue the other three persons is on.
In another development, two cadres of the BNCT militant group Jaksha Kumar Tripura and Brunjoy Triura (18) surrendered to the Sub Divisional Police officer of Gandacherra in Dhalai district on Tuesday, police said.
Two more militants belonging to All Tripura Tiger Force, Biswarai Debbarma and Shyamal Debbarma surrendered before Assistant Commandant of 10th Battalion Tripura State Rifles Camp at Jirania in West Tripura district last night.