Vaishakh Snan, or Baishakh Snana, is observed in the month of Vaishakh (April – May) as per the traditional lunar calendar followed in
North India. In 2013, Vaishakh Snan (date) begins on April 25 and ends on May 25. Vaishakh Snan is act of performing ritualistic bath (taking holy dip) in sacred rivers and Teerthas (sacred tanks) associated with Hinduism. Taking dip in the in Vaishakh month is considered highly auspicious. This year the Snan takes place in Adhik Vaishakh Maas and also in Nija Vaishakh Maas. Narmada River
Vaishakh Snan begins on the Purnima day (full moon day) in Chaitra month and ends on the full moon day in Vaishakh month.
The important bathing dates during Vaishakha Snana are Chaitra Shukla Purnima,
Vaishakh Krishna Amavasi, Vaishakha Shukla Tritiya, Vaishakha Shukla Panchami, and Vaishakha Shukla Purnima.