The limits of the kingdom were at their maximum during the rule of Raja Jas Pal in the 11th century when it is said that he was the master of all lands between the rivers of Satluj and Beas.

Also as a guarantee of loyalty a son of the Raja, 'a Prince' of Royal Blood was kept in attendance at the Imperial Court in Delhi and a troop of 500 foot soldiers were stationed with the Mughal Emperor and paid for by the Kutlehar Durbar.

In 1700 Guru Gobind SIngh ji crossed Kutlehar when Anandpur Sahib was attacked by the Mughals.

In the more recent past, the Kutlehar territory extended to the present areas if District Una, Talhatti in Hoshiarpur, Bassi Bachertoo in Bilaspur and in Hamirpur, till it was annexed by Maharaja Ranjit Singh in 1815[1] and the Raja exiled to the fort in Charatgarh.

According to tradition Kutlehar state was founded around 750 AD by an ancestral king named Raja Gopal.