In Ancient Sanskrit Literature
Lord Rama divided, during his life-time, his vast kingdom among his brothers and sons. His
son, Kusa succeeded to the south Kosala with its capital at Ayodhya. The old city of
Sultanpur which lay on the right bank of the Gomti is said to have been called Kusapura or
Kusabhavanpur, having been named after Kusa, who is locally believed to have founded it.
Kusa appears to have extended the Aryan ideals and institutions to the Vindhya region. The
story of his marriage with a Nag princess testifies that he propagated Vedic culture among
aborigines. Afterwards the central power of Kosala became week and Dirghayajna, the ruler
of Ayodhya, was subdued by Bhima, one of five Pandavas in the Mahabharata War (Mahabharata, Sabhaparva).
A few generations later, in the period of king
The tract of river Gomti around the village Dhopap (pargana Chanda, tehsil Kadipur) is described as Dhutpap in Visnu Puran.