This day is observed to honour the soldiers who fought during the Sino-Indian War of 1962.
On October 20, 1962, China launched a devastating attack on India.
A second Chinese offensive commenced on November 16, 1962.
The conflict finally came to a halt on November 20/21, 1962.
In 1966, a committee elected by then Prime Minister Indira Gandhi established this Day to honour soldiers and their families who sacrificed in conflicts.