Vrishabha Sankranti, or Brusha Sankranthi, is the day when the Sun enters the Taurus or Vrishabha in a traditional Vedic calendar. In 2017, the date of Vrishabha Sankranti is May 14. The Sankranti time is 2:14 AM on May 15. Vrishibha is the Sanskrit term used to refer ‘bull’, and is another name for Lord Shiva’s carrier Nandi. Vrishabha period starts on the day and continues for 30 days and the next month is Mithun Sankranti.
Vrishabha Sankranthi is known as Brusha Sankranti in Orissa and it also marks the beginning of the second month in Oriya calendar.
The day is also an auspicious days for Vishnu devotees. Special prayers are offered on the day. In some regions special rituals are held.