Bhadra Chatushtaya Vrata is observed in one of these months – Phalgun Maas, Jyeshta Maas, Bhadrapada Maas or Margashirsha Maas. It is a three-month-long vrata begins on Phalgun Shukla Dwitiya / Jyeshta Shukla Dwitiya / Bhadrapada Shukla Dwitiya / Margashirsha Shukla Pratipada.
This is observed mainly by women. The merits of this vrata include – success in all aspects of life and getting back the memories of previous birth.
Nakta Vrata; Daiva Tharpan & Pitru Tharpana; Mauna Vrata, etc,. are the major rituals of this vrata.
Pratham Tithi – Nakta Vrata
Dwitiya – Pitru Tharpan & Daiva Tharpan.
Surya Arghya and Chandra Arghya are performed.
This vrata is mentioned in Bhavishyottara Purana and Hemadri Vratakhand.