Bajrang Dal office bearer Amit Kumar alleged that the party had been organised in the "Hindu religious city" as part of a conspiracy to bring outsiders to the college campus.
A senior official of the district administration said about eight lakh lamps were lit on the 84 ghats located on the western bank of the river.
Contending that terrorism should not be associated with any particular religion, Home Minister Rajnath Singh on Sunday said that Muslims in India are nationalists who have always opposed terrorist elements.