Officials of the Border Security Force (BSF) on Monday airlifted critical patients and carried mortal remains of four people from difficult terrain in Jammu & Kashmir s Kupwara. The operation was carried out from the Tanghdar sector at the request of the Kupwara district administration. Jammu and Kashmir: BSF Airlifts Three Patients, Mortal Remains of Four From Difficult Terrain in Kupwara (See Pics and Video).