Yoga became a force that unifies the world, says Prime Minister Narendra Modi while he was speaking on the sidelines of the fourth International Yoga Day.

"The link between the brain, body and the soul of a human being in this rapidly changing world happens through Yoga. Thus the feeling of peace passes through us", says Modi.

Modi, along with 50000 people, demonstrated Yoga at the Forest Research Institute in Dehradun. The first Yoga day was conducted on 2015 June 21 at the Rajpath in New Delhi with an attendance of 30000 people.