Guru Purnima is celebrated on the Full moon day of the Ashadha month. This day traditionally stands for the day when the guru or the teacher is worshipped. On this day students and disciples offer Puja or pay respect to their Gurus. Guru Purnima is also known as Vyasa Purnima and this day is commemorated as birth anniversary of Veda Vyasa who was the author of the Hindu epic Mahabharata. Guru Purnima is also to honour Gautama Buddha for his first sermon at Sarnath, Uttar Pradesh, India.