Annakoot(Goverdhan) is a auspicious festival, This day chappan bhog is offered to Shri Radhavallabh. The legend behind this festival is that when the people of Vrindavan use to perform yajna and made holy offerings to please Lord Indra for prosperous rain and crop, Sri Krishna recommended them to offer prayers to holy hill Goverdhan instead as it hid valuable seeds, medicenes etc. in its lap. Agreeing to His advice they did so, which in turn furied Lord Indra. It is then that he held the holy mountain of Govardhan for seven days on his little finger to protect the people of Vrindavan from the rage of lightening and rainfall of Lord Indra.
After seven days Lord Indra accepted his defeat and apologised to the almighty Sri Krishna.Thus Goverdhan festival is performed in honour of the savior Lord Krishna.
Goverdhan or Giriraj Parikrama (Yatra) is also carried out which believed to be very auspicious.
Catch Out video highlights of Goverdhan Parikrama.-Goverdhan Giriraj Parikrama Highlights
Goverdhan yatra has a great significance on the days of poornima and ekadshi