Тендер №54774360: Provision of Aluminium window in 05 no of OP/ACP shelter elevated near BSF Pole No. (I) 1475 (II) 1487 (III) 1498 (IV) 1505 (V) 1517 at BOP HKT of 50 BN BSF under SHQ BSF Barmer (20-01-2022)