Clive would not accept the post of Dewan, either for himself or for the East India Company. But he wrote privately to the British premier, the first William Pitt, and proposed that the British Crown should act as Dewan to the Great Mogul. Under such an arrangement, the Crown might have taken over the Bengal revenues, sent half, or a quarter of a million a year to Delhi, spent another half million on a standing army, and devoted another half million to the salaries of the Nawab and his officials; and then might have secured a surplus of two millions a year towards the payment of the national debt. William Pitt, however, was already alarmed at the growing power of the Crown, and he declined taking over the proposed income lest it should endanger the liberties of the British nation. [Sidenote: Turmoils in the north-west.] In 1760 Colonel Clive returned to England, and in 1761 the war with France was over. India might now have been at peace, but the north-west was in a turmoil. The Great Mogul was murdered by his Vizier. The Afghans had slaughtered 200,000 Mahrattas on the fatal field of Paniput, and established their ascendency at Delhi. The fugitive Prince Imperial was proclaimed Padishah, or Emperor, by the Nawab of Oudh, who assumed the title of Nawab Vizier; and the Padishah and his Nawab Vizier invaded Behar and threatened Patna. [Sidenote: Change of Nawabs.] §3. The British at Calcutta were now in sore peril, and there was no Clive to guide them. They deposed Mir Jafir on their own authority, and set up his son-in-law, Mir Kasim, as Nawab of Bengal, Behar, and Orissa. The new Nawab was unquestionably a better man than the deposed Mir Jafir; but the transfer of a throne by a Governor and Council of British merchants was somewhat startling. There was, however, no one to resist the Calcutta traders, and Mir Jafir yielded to his kismet, retired from his post as Nawab, and removed to Calcutta, as a safer residence than Murshedabad. [Sidenote: Mastery of the British.] Mir Kasim agreed to all the British demands. He was bound over to pay half a million sterling for the maintenance of the British army; but he averted money disputes with the Company's servants by ceding three districts in the immediate neighbourhood of Calcutta, which yielded the same amount of revenue, and the British could collect the money for themselves. Above all, the new Nawab agreed, as Mir Jafir had done before him, to free the Company's servants from the payment of all inland transit duties within the Bengal provinces. [Sidenote: Dealings with the Padishahs.]