Major Hoshiar Singh was commanding the left forward company and he was ordered to capture the enemy locality of Jarpal.

Inspired by his courage and dauntless leadership, his company repulsed all the attacks inflicting heavy casualties on the enemy.

Throughout this operation, Major Hoshiar Singh displayed most conspicuous gallantry, indomitable fighting spirit and leadership in the highest traditions of the Army.

[6]Singh was promoted to substantive major on 30 June 1976,[11] subsequently serving for two years as an instructor at the Officers Training School, Madras (now Chennai).

In 1981 he was posted as an Instructor at the Indian Military Academy, Dehra Dun, and was promoted to lieutenant-colonel on 8 April 1983,[12] he eventually rose to command of his battalion.

[13] He settled in Jaipur, but frequently visited his village of Sisana and successfully encouraged many residents to join the armed forces.