According to Saeed, Mahmud Sharqi's first political venture was his invasion of Bengal, demonstrating his ambition for expansion and conquest.

[4] He conducted numerous invasions of neighboring empires in order to expand his realm, launching campaigns against Bengal, Chunar, Orissa, Malwa, and Gondwana.

After several battles, a peace agreement was reached, with Mahmud Sharqi agreeing to return Kalpi and other captured towns to Nasir Khan after four months.

Mahmud Sharqi celebrated his safe return by generously bestowing rich presents to nobles and scholars.

[7][8] In the third and fourth years of his reign, Mahmud Sharqi focused on consolidating his power by dealing with rebellious chiefs near Chunar, as reported by Nizam-ud Din and Firishta.

[9] As mentioned previously, following the passing of Ujjainiya leader Jagdeo, his successor, Sangram Deo, persisted with guerrilla attacks on local chiefs in Jaunpur until the death of Ibrahim Sharqi in 1440.

Upon learning of the disorder, Sultan Mahmud Sharqi promptly dispatched a force to conquer the Ujjainiya stronghold.

It's worth noting that all these military confrontations involving the Jaunpur army and Ujjainiya Rajputs occurred in and around the present-day Bhojpur district of Bihar and the eastern regions of modern-day Uttar Pradesh, contrary to Saeed's assertions referencing Rewa or Ujjain (Malwa).

Before the fighting could begin again, Mahmud died and was succeeded by his eldest son Bhikan, who assumed the title Muhammad Shah and negotiated a peace treaty with the Lodis.

Sultan Mahmud Sharqi, much like his father, had a deep appreciation for art and architecture, as demonstrated by the construction of splendid buildings, palaces, and grand mosques across his kingdom.

Adjacent to this mosque, construction was completed on the splendid palace belonging to his favored queen, Bibi Raji, during the same period.Three Arabic inscriptions from the time of Mahmud have been discovered in Bihar.

The earliest inscription, dated Rajab 1, 847 (25 October 1443), commemorates the construction of a Jāma mosque by a devout individual named Sayyid Ajmal.

In the inscription, Ajmal is described as Sadr-i jahan at the behest of Malik- ush Sharq, Nasir, the son of Baha, who served as the muqta or governor of Khitta in Bihar during Mahmud Sharqi's reign in 847/1443-4.