[3] He was the father of Maharani Datar Kaur and the father-in-law of Maharaja Ranjit Singh, the founder of the Sikh Empire.
However, the Guru was not received with hospitality and he passed on to the neighbouring village of Jambar where he lay down on a charpai (cot) under a shady tree.
[5] In 1748, Heera Singh took possession of the lands surrounding his native village, Baherwal and countryside of Kasur which was located in the Nakka country South of Majha Region and his misl took the name of that area.
In the following years he conquered Chunian from the Afghans but died near Pakpattan in a battle against Sujan Chisti- a devotee of the Shrine of Baba Farid.
The Nakais played an effective role in the battle-field, with a sizable army equipped with the adequate arms and were known for their strength and bravery and they excelled in fighting with the Afghans.
He was very ambitious and started acquiring territory under his Misl, he held Chunian, parts of Kasur, Sharakpur, Gogaira pargana and Kot Kamalia— by defeating the Kharral tribe.
He continued to exceeded his rule to the taluqas of Bucheke, Chhanga Manga, 69 km from Lahore, Chhichha, Devsal, Fatahpur, Jethupur, Kasur, Kharral fort of Kot Kamalia, Sharakpur, Gugera pargana, 5 km to the west of the Ravi, and Shergarh.
At the time of his death the Misl controlled Baharwal, Bucheki, Changa Manga, Chhichha, Chunian, Chunian, Dhaulri, Dipalpur, Faridabad, Fatahpur, Gugaira, Harappa, Jambar, Jethpur, Kanganpur, Khudian, Pakpattan, Raiwind, Chichawatni, Fatehabad, Killianwala, Kot Kamalia, Sahiwal, Syedwala, Sharakpur, Shergarh.
[10] Sardar Ran Singh Nakai was married to Bibi Karmo Kaur and had three sons and one daughter.
The ambitious Maharaja had been eyeing the Nakai territory, but had spared it till the death of Sardar Gyan Singh in 1807.
But soon after suggested Sardar Kahan Singh wto join the Lahore Darbar, which the proud Nakai chief steadily refused to obligate.
Diwan Hakim Rai, the administer of the Nakai Chief, immediately approached Ranjit Singh with the request that it was not proper for the Lahore forces to take military action against his nephew's misl.
Sohan Lai Suri notes that the Maharaja, very politely, said "I have nothing to do in this matter, Kunwar Kharak Singh is the maternal grandson of the Nakais and only he knows as to what is to be done.
[19] Ranjit Singh lovingly addressed her as Mai Nakain, she remained his favorite and most respected wife all his life.
She was exceptionally intelligent and assisted him in affairs of State, and bore him his elder sons, hence becoming his queen consort.