When news of Shāh Jahān’s advance towards Bengal and Orissa reached the Emperor, he sent orders to Prince Parviz and Mahabet Khān, who were in the Dakhin, to march quickly towards the Ṣubahs of Allahabad and Behār, so that in case the Nāzim of Bengal was unable to oppose successfully the advance of Shāh Jahan’s army, they were to engage Shāh Jahan. In the meantime, news of the fall of Nawab Ibrahim Khān Fateh Jang, Nāzim of Bengal, reached the Emperor, who thereon repeated his previous orders to Prince Parviz* and Mahabet Khān. Prince Parviz with Mahabet Khān and other officers marched towards Bengal and Behar. As the Commander of Shāh Jahān’s army, drawing the boats towards his side, had fortified the ferries of the river Ganges, some delay was caused in the arrival of the Imperialists. The Imperialists, with considerable difficulty, collected thirty flotillas of boats from the zamindars, and under the latter’s guidance selecting one ford, succeeded in crossing over. For some days, both the armies arrayed themselves in front of each other. As the Imperialists numbered 40,000, whilst Shāh Jahān’s army did not number more than 10,000, the advisers of Shah Jāhān dissuaded the Prince from offering battle. But Rajah Bhīm, son of Rana Karan, unlike other advisers, displayed rashness, and with the rashness common to Rajputs insisted that he would part company, unless they agreed to fight. Prince Shāh Jahān, of necessity, considered it expedient to humour Bhīm’s wishes, despite paucity of troops, and passed orders for fighting. Both sides rallying into ranks, commenced to fight.*
The gunners, on seeing this crisis, leaving the artillery, fled, and the arsenal was captured by the Imperialists. Daria Khān and other Afghāns and Generals ceasing to fight, decamped. The Imperialists, collecting from all sides like a circle formed by a pair of compasses, surrounded the Prince, who remained at the centre. Save and except the elephants carrying flags and standards, and select targeteers who were behind the Prince, and ‘Abdullāh Khān who stood to his right-hand side at a short distance, not a single soul remained. At this moment, an arrow hit the horse of the Prince. When ‘Abdullah Khān saw that the Prince would not retire from the field, he moved up, and by use of great entreaties and exhortations, succeeded in bringing out the Prince from the field, and placing before him his own horse, induced the Prince to mount it. In short, from the battle-field up to Rohtas, the contest did not cease. As at this time, Prince Murad Bakhsh* was born, and long marches could not be made, leaving him to the protection of God and appointing Khedmit Parast Khān and some other trusty servants to take care of him, Shāh Jahān with other Princes and adherents slowly marched towards Patna and Behar. At the same time, letters were received from people in the Dakhin, especially from Malīk ‘Ambar* the Ābyssinian requesting the Prince’s return towards the Dakhin. Shāh Jahān,* after retreat, summoned Dārāb Khān who, after taking oaths, had been left as Governor of Bengal, in order to join the Prīnce in his march. Dārāb Khān, owing to his disloyalty and knavery putting a wrong interpretation on his call, replied that the zamindars, surrounding him on all sides, had cut off ways of his march, and that, therefore, his egress being difficult, he begged to be excused. Shāh Jahān losing all hopes of Dārāb’s arrival, and having no body of troops capable of action, was obliged with a sorrowful heart, and in an auxious mood, after leaving Dārāb Khān’s son in charge of Abdullāh Khān, to march towards Akbarnagar (Rajmahal). From thence carrying all household paraphernalia, which had been left there, Shah Jahān marched back towards the Dakhin by the same route that he had come. Abdullāh Khān, on knowing the disloyalty and villainy of Dārāb Khān, slew the latter’s grown-up son, and satisfied his grudge. Although Shāh Jahān sent orders to prevent the son being killed, these had no effect. When the news of Shāh Jahān’s retreat from Bengal to the Dakhin reached the Emperor, the latter ordered that Mukhalaṣ Khān should quickly go to Prince Parviz, who had gone to Bengal in pursuit of Shāh Jahān, and taking up the office of Sazawal (Superintendent of Revenue), should send the Prince with other leading noblemen to the Dakhin. Consequently, Prince Parviz left for the Dakhin, entrusting the Ṣūbaḥ of Bengal to the Jagīr of Mahabet Khān and his son Khānāhzād Khān.