Today is National Police Commemoration Day. On this day in 1959, ten valiant Central Reserve Police Force (CRPF) personnel were martyred during patrol duty at Indo-China border in an ambush laid by heavily armed Chinese troops. Since then, 21st October is observed as Police Commemoration Day every year. Home Minister Amit Shah will lay a wreath at National Police Memorial in New Delhi today. Heads of Central Armed Police Forces, Central Police Organisations will also pay homage to the martyrs by laying wreaths.