Dausa in the context of National Highway 21 (India)

The Kingdom of Amber, later the Kingdom of Jaipur, was located in the north-eastern historic Dhundhar region of Rajputana and was ruled by the Kachwaha Rajput clan. It was established by Rao Dulha Rai, possibly the last ruler of the Kachchhapaghata dynasty of Gwalior who later migrated from Narwar to Dausa and started his kingdom there with the support of Chahamanas of Shakambhari with coalition of Gaur dynasty of sheopur in the 11th century. Mostly through 11th to 15th century, the kingdom faced stagnation, and resources were scarce. Under Samrat Prithviraj Chauhan, its Raja Pajjwan dev of Ajmer, battled Muhammad Ghori. Raja Chandrasen of Amber became a Sisodia under him and fought in the Battle of Bayana and The Battle of Khanwa under Raja Prithviraj Kachhwaha.

Under Raja Bharmal, the kingdom heavily aligned with the Mughals and Akbar. His son and grandson Raja Bhagwant Das and Raja Man Singh I were leading generals in Akbar's army and helped him in expanding the empire. Mirza Raja Jai Singh I served under Shah Jahan and became a distinguished general. He fell out of Aurangzeb's favour when he was suspected of helping Shivaji escape from Mughal captivity in 1664. Sawai Jai Singh II became the ruler during the decline of the Mughal Empire. He successfully rebelled against the Mughals in 1708 to regain his confiscated kingdom. After Jai Singh's death, the kingdom was drained of its resources during the civil war amongst his sons Ishwari Singh and Madho Singh I and the Marathas.

Dulha Rai (died 28 November 1036) was the founder of the Kachhwaha dynasty and also the 1st king from this dynasty who ruled the Kingdom of Amber in Dhundar region, with his capital at Khoh in present-day Rajasthan. He started his rule from Dausa which he obtained as a dowry from the Chahamanas of Shakambhari. Making Dausa as his base, he started conquering the region of Dhundhar and soon was recognised as the ruler of this region by the Chahamanas after he successfully suppressed the rebellious Bargujar Rajputs.