[6] He commanded the vast merchant fleets enterprise which sailed throughout Surat, Thatta, Arakan, Ayuthya, Balasore, Aceh, Melaka, Johore, Bantam, Makassar, Ceylon, Bandar Abbas, Mecca, Jeddah, Basra, Aden, Masqat, Mocha and the Maldives.

He may have arrived in Golconda in 1630 (although some scholars have suggested alternative dates of 1615 or 1620),[12] due to financial debts to a Sheikh ul Islam and general misgovernance in his country.

[17][18] Mir Jumla has presented numerous tributes from his trades to the sultan, such as rarities from Europe, cabinets from China, and elephants from Ceylon.

[22] Mir Jumla continues to impose the extraction moneys from the British company officials by using the Firman mandate from the Sultanate of Golconda.

[24] Narayan Sarkar even noted that the personal commercial enterprise of Mir Jumla has gradually became competitor of the East India Company.

[25] Mir Jumla had his own ships and organised merchant fleets in the 1640s that sailed throughout Surat, Thatta, Arakan, Ayuthya, Balasore, Aceh, Melaka, Johore, Bantam, Makassar, Ceylon, Bandar Abbas, Mecca, Jeddah, Basra, Aden, Masqat, Mocha and the Maldives.

[2] In 1639, Mir Jumla was appointed as Nawab, thus increasing his importance in the eyes of the British company, as they further presented him with gifts, lending men, and traded on his behalf to keep him satisfied.

[50][51] With the governorship over the Karnataka domains, Mir Jumla exponentially transformed from a wazir of a powerless master to a position of unchecked power and wealth.

[55] Prince Aurangzeb, which has passionate ambition of conquering the rich State of Golconda, was eager to opened a secret correspondence with Mir Jumla.

[56] On his accession to the throne, Aurangzeb entrusted Mir Jumla with the task of dealing with Shah Shuja, where the rebellious prince was defeated in the Battle of Khajwa and took to flight.

The latter, however, had already left Dhaka, crossed the eastern border and ultimately found shelter with the king of Arakan (modern day Myanmar).

[61][verification needed] He at once began reorganising the administration, which had become slack in the absence of Shuja during the war of succession, and disobedience and refractoriness had become prevalent.

He then paid attention to the administration of justice, dismissed dishonest Qazis (clerics and judges) and Mir Adils and replaced them with honest persons[citation needed].

[65] He also granted the command of 6000 Mughal cavalry, residence near Agra Fort, precious stones, 200 horses, 10 elephants, as well as 500000 rupees payment in cash.

[68][69] Furthermore, Mir Jumla also employing a British named Thomas Pratt to construct boats and making ammunition for riverine warfare[70] Francisco Bethencourt and Catia Antunes has noted how Mir Jumla shared traits of Asian princes or potentates for his fondness for cannon weaponries, and how he is willing to employ European gunners such as crews of Ter Schelling ship.

[72] Koch Behar was occupied in about one month and a half and making administrative arrangements there, Mir Jumla came to join the advance party towards Kamrup.

Mir Jumla took 12,000 cavalry, 30,000 infantry, and a fleet of 323 ships and boats up river towards Assam—the naval contingent comprised Portuguese, English, and Dutch sailors.

[72] An account of the campaign and the life during the times was presented by the Venetian adventurer Niccolao Manucci in his memoirs Storia do Mogor, referencing French historian François Catrou.

[74] Pratte was appointed by Mir Jumla as an officer in the Mughal navy and used to collect war boats and procure gunpowder necessary for naval warfare.

During the rains, the Mughals were locked in a few raised grounds, the roads were submerged, the streams and even the Nalahs (drains) swelled up to become big rivers.

But, the Mughals lost two thirds of the army due to lack of food and relentless attacks by Assamese shart shooters at night.