It is an important Muslim festival and celebrates the faith of man in God. It celebrates an important event in the Islamic tradition. God wanted to test Ibrahim's faith and asked him to offer his only son Ismail as a sacrifice to Him. Ibrahim was very disturbed but decided to tell his son and explain the situation. When Ismail saw his father's dilemma he urged him to do his duty by God. Ibrahim took Ismail to a mountain and prepared to sacrifice him. Ismail tied a piece of cloth around his father's eyes so that he would be spared the sight of his child dying by his own hand. Ibrahim plunged his knife into the sacrificial offering and removed his blindfold to find a goat on his makeshift altar and his son unharmed.
To honour this occasion and to celebrate the trust of man in god Muslims around the world sacrifice an animal on the occasion of Id-ul-azha to show their faith, allegiance and sincerity towards Allah. In India, the animal used most often for sacrifice is the goat - which is why the occasion is spoken of in Urdu as Bakhr or Bakri-Id.
Generally celebrated in the month of March but the date of the festival is fixed only after the observation and sighting of the moon.

Where: all over India, indeed, the world.