Answer:

Background:
During the Mughal Empire, several regions in India experienced a gradual decline in central authority and the rise of regional powers. One such region was Bengal, which broke away from Mughal control under the leadership of Murshid Quli Khan.

Murshid Quli Khan and his Appointment:
1. Murshid Quli Khan was a powerful regional figure who served as the diwan, or revenue minister, of Bengal under the Mughal Empire.
2. Recognizing his administrative abilities, Emperor Aurangzeb appointed him as the naib, or deputy, to the governor of the province.
3. This appointment gave Murshid Quli Khan significant power and autonomy in ruling Bengal.

Bengal's Breakaway from Mughal Control:
1. Under Murshid Quli Khan's leadership, Bengal gradually started asserting its independence from Mughal control.
2. He implemented various administrative and economic reforms that strengthened Bengal's position.
3. Murshid Quli Khan focused on efficient revenue collection, agricultural development, and trade promotion.
4. He encouraged local industries and trade, which boosted the economy of Bengal.
5. His policies also aimed at reducing corruption and improving governance.
6. Over time, Murshid Quli Khan consolidated his power and established a strong administrative system in Bengal.

Consequences of Bengal's Breakaway:
1. Bengal's breakaway from Mughal control had significant consequences for the region.
2. It marked the beginning of an independent Bengal Subah (province) that lasted until the British East India Company took control in the 18th century.
3. The success of Murshid Quli Khan's administration in Bengal set an example for other regions to challenge Mughal authority.
4. It also paved the way for the establishment of regional powers and the decline of the Mughal Empire in India.
5. Bengal's economic prosperity under Murshid Quli Khan attracted the attention of European powers, particularly the British, who eventually became dominant in the region.

Conclusion:
In conclusion, Bengal broke away from Mughal control under the leadership of Murshid Quli Khan, who was appointed as the naib, or deputy, to the governor of the province. His administrative reforms and focus on economic development helped establish Bengal as an independent and prosperous region, setting the stage for the decline of the Mughal Empire and the rise of regional powers in India.

Mursid Ali Khan was nawab of Bengal ..