Wikipedia
Gajan (festival)
Gajan is a Hindu festival celebrated mostly in the Indian state of West Bengal. It is associated with such deities as Shiva, Neel and Dharmathakur. Gajan spans around a week, starting at the last week of Choitro continuing till the end of the bengali year. It ends with Charak Puja. Participants of this festival is known as sannyasi or Bhokta. Persons of any gender can be a participant. The complete history of the festival is not known. The central theme of this festival is deriving satisfaction through non-sexual pain, devotion and sacrifice.