Explanation

Operations Garam Hawa (May–June, summer) and Sard Hawa (January, winter) are the BSF’s periodic heightened-vigilance operations along the India–Pakistan border (Rajasthan and Gujarat sectors), launched because extreme weather hampers routine patrolling and aids infiltration. The ITBP guards the China border and the CRPF handles internal security, so neither conducts these. Hence (A) BSF is correct.