Prime Minister Narendra Modi today greetings to the nation on the occasion of Guru Purnima. "In Sarnath, Lord Buddha told us the source of the entire life. He told us about sorrow and its reasons. He assured us that one can win against sorrows, he even told us the way to do so. He gave us eight mantras for life," PM Modi said. Ashadha Purnima-Dhamma Chakra Day is also known as Guru Purnima. (Video Credit: ANI)