Alivardi Khan, the fourth Nawab of Bengal, ruled from 1740 until 1756, marking a significant period in the region's history. He ascended to power by defeating Sarfaraz Khan, effectively ending the Nasiri dynasty's reign. His leadership was characterized by a series of challenges, including frequent raids by the Marathas under Raghuji Bhonsle, which ultimately led to the surrender of the province of Orissa in a peace settlement in 1751.
Throughout his tenure, Alivardi faced various internal conflicts, including separatist rebellions in Bihar and a notable revolt from his own grandson, Siraj ud-Daulah. Despite these challenges, he managed to suppress the uprisings and maintain his authority over Bengal.
In the latter years of his reign, Alivardi Khan focused on rebuilding Bengal, demonstrating his commitment to the region's prosperity. He was a patron of the arts and continued the policies established by his predecessor, Murshid Quli Khan. Notably, he adopted a politically neutral stance towards the European powers in the subcontinent, successfully preventing infighting among them within his dominions.
Alivardi Khan's reign came to an end in 1756 when he was succeeded by Siraj ud-Daulah, leaving behind a legacy of resilience and cultural patronage.