This incident started on October 20, 1959, when the Central Reserve Police Force (CRPF) was in charge of patrolling the 2,600-mile border between India and Tibet.
Three units of the CRPF’s 3rd Battalion were dispatched on separate patrols to a location known as Hot Springs to keep an eye on the Indo-China border in North Eastern Ladakh.
However, one of the three contingents, which consisted of two police constables and a porter, did not return.
On October 21, a new contingent that comprised all available personnel led by DCIO Karam Singh was mobilised to search for the lost troop.
As a result of a resolution made at the Annual Conference of Inspectors General of Police of States and Union Territories in January 1960, October 21 is now recognised as Police Commemoration Day or Martyr’s Day.