The Battle of Chamkaur was between 42 Sikhs under Guru Gobind Singh and 10 lakh Mughal forces under Wazir Khan .
In the battle of chamkaur , both the elder sons of Guru Gobind Singh Sahibzada Ajit Singh 18 years old and Sahibzada Jujhar Singh 14 years old were martyred .
Chaar Sahibzaade