AGARTALA, July 2 ? A tribal housewife was killed by insurgents of the banned National Liberation Front of Tripura (NLFT), police Tuesday. Police said a group of armed NLFT ultras raided Ramkrishna Para village in West Tripura district last night and stormed the house of one Santosh Debbarma. As the houseowner was not present, the insurgents attacked his wife Khanjani Debbarma (24) with sharp weapons before fleeing from the area and she died on the spot, police added. A search operation has been launched in the area to nab the culprits, police said.