Nag Nathaiya is celebrated on the fourth lunar day of the dark fortnight of the Hindu month of Kartik ( October – November ) . It commemorate the victory of Krishna over the serpent Kaliya . On this occasion , a large Kadamba tree ( Neolamarckia cadamba ) branch is planted on the banks of the Ganges so that a boy , playing the role of Krishna , can jump into the river on to the effigy representing Kaliya . He stand over the effigy in a dancing pose playing the flute , while an audience watch from the banks of the river or from boats . Bharat Milap celebrate the meeting of Rama and his younger brother Bharata after the return of the former after 14 years of exile . It is celebrated during October – November , a day after the festival of Vijayadashami . Kashi Naresh attend this festival in his regal attire . The festival attract a large number of devotees .