In the absence of real Raja Sardar Karam Singh of Shahzadpur & Ambala (Gurbakhsh Singh, Daya Kaur 1786 – 1808) was ruled by Gurbakhsh Singh After his death, his widow, Daya Kaur, gained control over the estate in 1786. She ruled over the territory very well for over 37 years. In November 1808, Maharaja Ranjit Singh attacked Shahzadpur and take Naraingarh in his control and put pressure on Shahzadpur state then ruler of Shahzadpur asked for help from British Government. And Maharaja Ranjit Singh was forced to leave back.