Ace shuttler Saina Nehwal and wrestler Sakshi Malik were among other members of Indian sports fraternity who also posted yoga day greetings on Twitter.
In India, more than 50,000 people joined Modi in performing yoga in the lawns of Dehradun's Forest Research Institute, in the Himalayan foothills of Uttarakhand.
Mr. Modi said the way to lead a calm, creative and content life was yoga. Instead of further animosity, Yoga assimilates.
Besides, several yoga events were organised in various parks in the city.
In Mumbai for the Yoga Day celebrations, Vice-President Venkaiah Naidu said that he want it to become a people's movement because it is not political or religious. He said: "Yoga is handsome because it is ancient yet modern, it is constant yet evolving".
At least 5,000 events big and small took place across India, but the largest was expected to be in Mysore in the south with more than 60,000 taking part, according to organisers.More news: Koko the gorilla who 'mastered sign language' dies
For the International Yoga Day (IDY) 2018, the AYUSH Ministry is all set to organise a tour for the overseas Yoga professionals to the "Yoga's birthplace" that is the southern state of Kerala.
Submarine staff from India's Eastern Naval Command were pictured doing yoga poses, as were soldiers in Secunderabad. Yoga embodies unity of mind and body, thought and action. a holistic approach [that] is valuable to our health and our well-being.
The artwork featured Modi, US President Donald Trump, Chinese leader Xi Jinping, Russian President Vladimir Putin and North Korean leader Kim Jong Un all in the lotus position. While it might be hard to believe, it is a fact that religiously practicing yoga is extremely beneficial for your heart and lungs as it causes the organs to rhythmically expand and contract, helping them remain in a healthy condition, India Today reported.
"When disintegrating forces gain prominence it is yoga that unites, creates amity in societies, which forms the basis of national unity and unity among nations, and finally leads to universal peace and brotherhood. One day you walk the path, the next day you find the truth also", Swami Chidanand Saraswati told AFP.
Stressing on India's role in promoting the practice, he added, "The gems of India's unique heritage such as yoga will be respected by the world at large only when we ourselves respect our culture and traditions, and take part in our legacy and heritage".
"As the Sun is for all, the Moon is for all, rivers are for all, in the same way yoga is for all", he said.