BSF —- Border Security Force
SSB. —- Sashastra Seema Bal
IAF. —- Indian Air Force
NSG —– National Security Guard
NDA. —– National Defence Academy
CDS. —– Chief of Defence Staff
SPG. —– Special Protection Group
CRPF. —– Central Reserve Police Force
NDRF. —– National Disaster Response Force
CISF. —— Central Industrial Security Force
ITBP. —— Indo Tibetan Border Police