Raja Rudrapratap Narayan Singh built Navratna Garh (also known as Bhojpur Quila or Raja Bhoj Quila) in 1633 CE. It is said that there were 52 lanes and 56 doors in the fort.

According to folklore, the fort used to shine so bright at night that it was visible from Delhi and that is why the Mughal officer Abdullah Khan demolished it within three years of construction. And so, there are barely any remains of the fort today.

Also, Raja Bhoj of Malwa (Madhya Pradesh) conquered the area now known as Bhojpur and settled here. There are ruins in the region believed to be the palaces of Raja Bhoj and his descendants. However, there is no historical evidence to back this claim. When Francis Buchanan visited the site in 1812 CE, he noticed traces of the old channel of the Ganga (which is now more than 20 km north) there. From this, he concluded that Bhojpur was once an extensive town which the river had washed away.

The Paramara dynasty (IAST: Paramāra) was an Indian dynasty that ruled Malwa and surrounding areas in west-central India between 9th and 14th centuries. The medieval bardic literature classifies them among the Agnivanshi Rajput dynasties.

The dynasty was established in either 9th or 10th century, and its early rulers most probably ruled as vassals of the Rashtrakutas of Manyakheta. The earliest extant Paramara inscriptions, issued by the 10th century ruler Siyaka, have been found in Gujarat. Around 972 CE, Siyaka sacked the Rashtrakuta capital Manyakheta, and established the Paramaras as a sovereign power. By the time of his successor Munja, the Malwa region in present-day Madhya Pradesh had become the core Paramara territory, with Dhara (now Dhar) as their capital. The dynasty reached its zenith under Munja's nephew Bhoja, whose kingdom extended from Chittor in the north to Konkan in the south, and from the Sabarmati River in the west to Vidisha in the east.

The Paramara power rose and declined several times as a result of their struggles with the Chaulukyas of Gujarat, the Chalukyas of Kalyani, the Kalachuris of Tripuri and other neighbouring kingdoms. The later Paramara rulers moved their capital to Mandapa-Durga (now Mandu) after Dhara was sacked multiple times by their enemies. Mahalakadeva, the last known Paramara king, was defeated and killed by the forces of Alauddin Khalji of Delhi in 1305 CE, although epigraphic evidence suggests that the Paramara rule continued for a few years after his death.