Why is October 21 observed as Police Commemoration Day?
On October 21, 1959, a platoon comprising 21 policemen was patrolling the border in Hot Spring in Ladakh's Aksai Chin when it was ambushed by the Chinese troops. Armed with automatic weapons and mortars, the Chinese troops killed 10 policemen and handed over their mortal remains in November. Police Commemoration Day is observed in memory of those martyrs.