PROVIDING and INSTALLATION OF PORTABLE SINGLE SEATED PORTABLE TOILET CABIN 15 NOS)AT OP POINTS IN AOR OF BOPs GONGRA 03 NOS, BOP BHATGACHI 04 NOS, IOP RAJIVPUR 04 NOS, and BOP BRAHMANAGAR 04NOS OF 82 BN BSF UNDER SHQ BSF KRISHNANAGAR (Tender №90440800)