Vijaya's reign is viewed to have heralded a new era in the history of medieval Tripura. The death of Daityanarayana curtailed the tremendous influence of the army chiefs in the kingdom's administration, allowing Vijaya to consolidate executive power in his own person. He was thus freed to focus his full powers in achieving his considerable military ambitions. Great efforts were implemented in modernising the kingdom's army and strengthening its influence. Archers, elephants, artillery and a navy were organised and incorporated into its ranks, while military camps were established at Tripura's frontiers to better defend its sovereignty. In line with trends occurring throughout the
Indian subcontinent, cavalries became an intrinsic part of the army during Vijaya's reign, being established with the aid of
Afghan soldiers. Chronicles state that these reforms resulted in a formidable military composed of 200,000 infantry, 10,000 cavalry, 1000 elephants and 5000 boats. This realisation of Tripura's military might allowed a period of aggressive territorial conquests to be initiated, resulting in the extensive expansion of lands under Vijaya's control. The regions of
Sylhet and
Jaintia were conquered and incorporated into the kingdom, the ruler of
Khasiya voluntarily submitted to Tripuri suzerainty and
Chittagong was recaptured from the Afghan rulers of
Bengal. However, as a result of the defeats inflicted by Vijaya on their countrymen, the Afghans in his army revolted, with 1000
Pathan horsemen marching on Chittagong. The rebels were soon captured and Vijaya had them sacrificed at the altar of the
Fourteen Gods. The Sultan of Bengal, who may have been disturbed by the deaths or was perhaps attempting to take advantage of the distraction provided by the rebellion, launched an invasion of Tripura. 10,000 foot soldiers and 3000 cavalry assaulted the kingdom, resulting in a protracted eight-month conflict in Chittagong. However, Tripura emerged victorious, with the Bengali commander also being sacrificed to the gods. Vijaya launched a counter assault, with his armies raiding deep into
east Bengal. He himself commanded his 5000 riverboats down the
Brahmaputra River to the
Padma, occupying
Bikrampur and having
Sonargaon plundered and burned. The Sultan, having been distracted by an internecine war with the
Mughal Empire, was unable to oppose Vijaya, leaving the latter the unrivalled master of the region. ==Interactions with contemporary rulers==