Daughter of Dasaundha Singh Gill, was married
to Gurbakhsh Singh, son of jai Singh, leader of the Kanhaiya clan.
As the menace of Ahmad Shah Durrani's incursions receded, conflicts
broke out among the Sikh misl chiefs. Mahan Singh Sukkarchakkia,
helped by Jassa Singh Ramgarhia and Sarisar Chand Katoch, attacked
Jai Singh in 1785.
A fierce battle took place at Achal, about 6 km south of Batala,
which was the seat of the Kanhaiyas. Jai Singh was defeated and
his son, Gurbakhsh Singh, husband of Sada Kaur, was killed. The
bereaved, yet farsighted, widowed Sada Kaur, persuaded her father-in-law,
Jai Singh, to offer the hand of her only daughter, Mahitab Kaur,
to Ranjit Singh, the five-year old son of Mahan Singh Sukkarchakkia.
The marriage came off in 1796. Sada Kaur accompanied her daughter
to Gujranwala after the nuptials. She became one of the members
of the triune regency for young Ranjit Singh who had succeeded to
the leadership of the Sukkarchakkias upon the death of his father
in 1792. The other two members were Mai Raj Kaur (popularly known
as Mai Malvain), mother of Ranjit Singh, and Diwan Lakhpat Rai,
his minister. Mai Malvain and Lakhpat Rai were removed from the
scene by death, the latter having been killed in an expedition against
the warlike Chatthas. Sada Kaur was now the only one of the triumvirate
left to guide and counsel Ranjit Singh. Being by now head of the
Kanhaiya misl, she provided him with material help as well. She
helped him to occupy Lahore defeating the Bharrgi chiefs, Mohar
Singh, Sahib Singh and Chet Singh, from whose misrule the citizens
had sought the Sukkarchakkia Sardar to rescue them. Lahore fell
to the joint command of Ranjit Singh and Sada Kaur on 7 July 1799.
Supported by his mother-in-law, Ranjit Singh made further acquisitions
and assumed the title of Maharaja on 11 April 1801.
In the campaigns of Amritsar, Chiniot, Kasur and Kangra as well
as in his expeditions against the turbulent Pathans of Hazara and
Attock, Sada Kaur led the armies side by side with Ranjit Singh.
But both were strong personalities and mutual clashes began to occur.
The marriage of Sada Kaur's daughter to Ranjit Singh did not prove
a happy one. Mahitab Kaur's first son, Ishar Singh, died in infancy.
On his return from the Sutlej campaign in 1807, Ranjit Singh was
presented by Sada Kaur with twin sons, Sher Singh and Tara Singh,
born to her daughter, Mahitab Kaur. But Ranjit Singh had already
married a second time and the son born to this union was acknowledged
as the heir apparent. This soured the relations between the mother-in-law
and the son-in-law. Sada Kaur now opened secret negotiations with
Sir Charles Metcalfe and Sir David Ochterlony to secure herself
the status of an independent Maharani. She further offended the
Maharaja by not attending the heir apparent's marriage in 1812.
She did not allow even her grandsons, Sher Singh and Tara Sirigh,
to join the ceremonies. Ranjit Singh started making inroads into
the Kanhaiya territory lying on the other side of the River Beas.
The breaking point finally came when on Sher Singh's attaining
majority, Ranjit Singh insisted that Sada Kaur hand over the administration
of her estates to him. Sada Kaur refused and threatened to seek
the protection of the British in the Sutlej territory and hand over
to them the town of Vadhni, located to the south of Sutlej which
Ranjit Singh had conquered and transferred to her in 1808. The Maharaja
cajoled Sada Kaur into visiting Lahore, where she was kept under
strict surveillance. Once she managed to escape in a covered litter,
but was detected and brought back. Her territory was, in the meantime,
sequestered and the wealth of the Kanhaiyas lying at Atalgarh (Mukeriari)
was confiscated. Batala was granted as a jagir to Sher Singh while
the rest of Sada Kaur's estates were placed under the governorship
of Sardar Desa Singh Majithia.
Sada Kaur died in confinement in December 1832.