Singh's reign was noted for the power and influence wielded by his sister, Sahib Kaur, who served as his Chief Minister and the General of Patiala's army.

From 1781 to 1790, the prime minister of Patiala, Dewan Nandu Mal, was the regent of Patiala and his grandmother, Rani Hukman also played a key role in the state's administration.

[4] During his regency, Singh faced rebellion from several family members, which Mal successfully suppressed.

In 1787, he married Rattan Kaur and in 1790, the regency in Patiala ended and Singh removed Mal as prime minister by exiling him from the state.

[4] After Singh took full control of Patiala State in 1790, he appointed his sister Sahib Kaur, as his Chief Minister and the leader of his armies.