He said yoga should be made a part of daily routine by the people to have tension-free lives.
In a message ahead of the Yoga Day on June 21, Modi said yoga inter-connects the world like various parts of a body.
"On 21st June, the world will come together to mark the 3rd #YogaDay. Let us all make this occasion a memorable one," he tweeted.
"Yoga is integrating the world. Come, become a yogi in the movement to make Yoga popular & create a better & healthier society," he said in another tweet.
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"People want to live a happy life and this can be possible only through yoga," he said.
Yoga can make it possible for a person to have a balanced lifestyle mentally and physically, he said.
"Yoga can arouse the inner conscience of a person," Modi said.
He asked all yoga practioners to take a pledge to teach it to the maximum number of people so as to contribute to the world peace.