MOHAR SINGH OF NISHANWALIA (d. 1785), a prominent leader of the Nishanwalia chieftaincy, was the eldest of the three sons of Jat Chiefs Lal Singh. He added Ambala and Zira to the territories he had inherited and soon became an influential figure among the cis Sutlej chiefs. In September 1779, he at Thanesar waited upon `Abdul Khan who was then leading an expedition against Patiala, and received from him a khillat of five pieces, a latter, and a sword. In 1785, Mahadaji Shinde, regent of the Mughal empire, decided to win over the Sikhs by a treaty of friendship, and sent Ambaji to start negotiations.
The Sikhs deputed Mohar Singh and Raja Dulcha Singh Sandhu (Later founder Of Radaur State), of the Karor Singhia Misl, as their representatives, first to meet Ambaji Ingle and then Mahadaji Shinde, at Malhura. As a result of these parleys a treaty was signed by Mohar Singh and Dulcha Singh with Mahadaji Shinde on 9 May 1785. At the time of departure they were given robes of honour, necklaces of pearls and horses. Mohar Singh died at Ambala in 1785 in a feud with Gurbakhsh Singh of Morinda and his two widows retired to their estate at Zira in Firozpur district.
References :-
- L.H Griffin and C.F.Massy, Chiefs and Families of Note in the Punjab. Lahore, 1909
- Hari Ram Gupta, History of the Sikhs, vol. IV. Delhi, 1982