Janai Purnima is the festival of Sacred Thread.On this day every Hindu ties a sacred thread on the wrist.It is also called Rakshya Bandhan.On this day, there is a big Mela (fair) at Khumbeshwor, Lalitpur.It is again on a full moon night. . On this day Hindu men, especially the Brahmans and Chettris perform their annual change of Janai, a yellow cotton string worn across the chest or tied around the wrist of the right hand.
The Newars of Kathmandu valley call it Gunhi Punhi, the day when a soup of different beans, known as Kwati is prepared as the special menu of the day, signifying the coming of winter season.
'unclean'. But according to Hindu rules the cord must be changed without fail by a Brahman on this day, Janai meaning sacred thread, and purni meaning Purnima or the full moon, thus pointing to the change of the thread on the auspicious full moon day. On Janai Purnima, there is a big mela (fair) at Kumbeshwor in Lalitpur. Devotees come here to worship Lord Mahadev and to tie a knot around their wrists. On the preceding day the wearer makes himself 'clean' by shaving, cutting the hair and bathing. He undergoes a partial fast, taking only one meal of foods considered to be 'clean' - no meat, onions or garlic. The next morning the family priest comes to the house. The entire family gathers around him as he reads from a holy book, performs a ceremony, which sanctifies the new thread, and places it about the recipient's neck across the chest. In payment the priest is given foodstuffs and some money.