After the Sultan of Delhi, Nasiruddin refused to sanction his Campaigns against the Eastern Ganga dynasty who held South Bengal, Tartar Khan declared independence from Delhi until 1266 when he sent his envoys to Sultan Ghiyasuddin Balban. This diplomatic mission from Bengal was accorded a royal reception at Delhi worthy of embassies from Iran or Turan. The envoys of Tatar Khan were loaded with valuable gifts and given leave of departure as well as official sanction for Military campaigns in South Bengal.