He conquered Attock from the Durrani Afghans in 1813 and subdued the Rajputs in the Hills of Himachal and in Jammu at Jasrota, Chamba, and Basroli.

He also commanded one of the early Sikh expeditions to conquer Kashmir that ended in failure due to bad weather blocking the passes to the valley.

Mokham Chand was born in a Hindu Khatri family of a Mehra background,[3][4][5] to Vaisakhi Mal[note 1], a tradesman of the village Kunjah near Gujrat.

[5] He eventually fell out of favour and was even imprisoned awaiting execution but the wife of Sahib Singh, Chand Kaur, spared his life by assisting his escape.

[6] In the beginning of 1808 various places in the Upper Punjab were taken from their independent Sikh proprietors, and brought under the direct management of the new kingdom of Lahore, and Mokham Chand was at the same time employed in effecting a settlement of the territories which had been seized on the left bank of the Sutlej.

[9] The Diwan left his elephant, mounted a horse and personally leading his reserves fell upon the disorganized Afghans.

Diwan Ram Dayal, known for his ‘vigilance and smartness in the art of soldiery’, succeeded his grandfather as the commander of the State Troops.

"As a general, he was uniformly successful and from 1806 to 1814 the annexations of Ranjit were due not only to his own irresistible cunning but also to Muhkam Chand’s military talents.

Moti Ram and Kirpa Ram rendered commendable service at the Court of Lahore over decades, yet both father and son were hounded and forced to leave for Benaras due to the undue influence of Dhian Singh, who succeeded in eliminating this "great and influential" family at the Court of Lahore.