Vrishabha Sankranti is observed in the beginning of the second month of Hindu Solar Calendar. There are twelve Sankrantis in every year and all of them are highly auspicious for doing Dan-Punya activities. However, it should be remembered that only some specific time duration before or after each Sankranti muhurta is considered auspicious for doing Sankranti related activities.
For Vrishabha Sankranti, sixteen Ghatis before the Sankranti muhurta are considered very significant and all righteous activities can be performed during this time frame.
Gifting of cow, known as Godan, is considered highly auspicious during Vrishabha Sankranti.
Vrishabha Sankranti falls on 14th May or on 15th May. In South India Sankranti is known as Sankramanam.