Dhopap — 'the place that washes away sin' — sits on the right bank of the Gomti, on the Sultanpur–Jaunpur road, about 32 km south-east of Sultanpur city and 85 km from Ayodhya. Tradition holds that after Lord Rama defeated Ravana, a learned Brahmin king, Maharshi Vashishtha advised him to bathe here for atonement. The district portal, citing the Vishnu Purana, says the Gomti was known in this tract as Dhutopapa, 'the sin-cleanser' ⚑. The Padma Purana (Patala Khanda) does recount Rama's remorse over Brahmahatya after Ravana's death; local accounts tie his atonement to this ghat and add that Vashishtha reminded Rama that Ravana, grandson of the sage Pulastya and a master of the Vedas, was a Brahmin, so atonement was needed; Rama bathed in the Gomti — also called Adi Ganga — on Jyeshtha Shukla Dashami, in the presence of the people of Awadh, and the place came to be known as Dhopap.
A nearby belief says Rama lit a lamp here on his way back to Ayodhya, and the neighbouring area took the name Diyara from diya ⚑. In the early twentieth century Raja Rudra Pratap Singh of Diyara (1860–1914) helped restore the Ram temple at Dhopap and set up an Ayurvedic hospital for the poor, a dharamshala and Sanskrit schools ⚑ — heritage care and seva have long gone together here. Dhopap Ghat and its Ram temple draw pilgrims for a holy dip on Ganga Dussehra (Jyeshtha Dashami) and Chaitra Ram Navami, when bathing fairs gather. For Kushbhawanpur — traditionally linked with Kusha, son of Rama, and recorded in the district gazetteers as Kusapura or Kushabhavanpur — Dhopap is a reminder that this river-land is woven into the story of Rama, and that dharma means humility, atonement and renewal.