The theme this year is "Yoga for Health," and according to the UN, "highlights the fact that yoga can contribute in a holistic way to achieving an equilibrium between mind and body."
The event, being held at the Ramabai Ambedkar Maidan — also called the Ramabai Rally Sthal — in Lucknow, is being telecast LIVE across several media, on radio, on TV as well as online. You can watch the LIVE telecast HERE , from 6:20 am IST.
However, just in case you can't do that, get all the LIVE updates of the entire programme right here:
8:20 am IST: And with that we come to the end of this live update.
8:10 am IST: Even our jawans are practising yoga, and setting the bar at quite a high altitude!
8:05 am IST: UNESCO weighs in on World Yoga Day.
8 am IST: Modi now makes his way towards the exit, all time time waving back at people who are waving towards him.
7:55 am IST: Modi is now greeted by officials, and then makes his way towards the podium and waves at the youngsters.
7:53 am IST: The main event at Lucknow, featuring Modi, has come to an end. Stick around to see if he converses with the people, like he did last time.
7:47 am IST: Chhattisgarh Chief Minister Raman Singh now joins the act. In his own state, of course.
7:45 am IST: Even the NDA's presidential candidate Ram Nath Kovind takes part in yoga in Delhi.
7:40 am IST: Yoga brings even the BJP and the AAP together! AAP chief and Delhi Chief Minister Arvind Kejriwal performs yoga with Union minister Venkaiah Naidu in Delhi.
7:35 am IST: Elsewhere, NCC cadets perform yoga in Maharashtra.
7:30 am IST: In case you thought International Yoga Day was being celebrated only on land, think again!
7:27 am IST: Now the sitting asanas begin in Lucknow.
7:25 am IST: As Modi performs asanas in Lucknow, leaders from the BJP perform yoga in their own corners of the country.
Here is Assam Chief Minister Sarbananda Sonowal.
7:20 am IST: The asanas begin, with Taalasan or Taadasan.
Modi and those around him seem to be either out of synch with the rest of the crowd, or are doing asanas chosen just for them.
7:18 am IST: The warm-ups continue, for the limbs, the head and other parts of the body.
7:12 am IST: Warm-up begins. It is supposed to increase blood circulation across the body.
Modi, meanwhile, has taken his place among the people and is following the instructions, along with everyone else.
7:10 am IST: We are now preparing for the main asanas. It starts with a prayer.
7:07 am IST: The prime minister now makes his way to among the people to perform yoga. The rain does not seem to matter for him.
7:05 am IST: "We can make yoga as much a part of our lives as salt," says Modi. Salt??
Modi explained: "Life cannot be sustained on salt alone, but life without salt is imposible to sustain."
7:02 am IST: "Wellness is more important than health and fitness, and yoga is the way to wellness," says Modi. He adds: "Nowhere in the world is yoga put under question."
Modi also says: "We feel many sleeping organs wake up when we do yoga." Another push for wellness.
7 am IST: And here it is, the answer to the "no job creation" jibe by Opposition! Modi says yoga is creating jobs not only in India but also across the world.
6:57 am IST: "Yoga is helping the world connect with India," says Modi. He points out that countries that do not know Indian culture and history are also connecting to the country through yoga.
6:55 am IST: Modi speaks on a lighter vein. "People of Lucknow have shown me how to use yoga mats in the event of rain," he says.
People are using yoga mats to shield themselves in the open-air venue as the rain falls intermittently.
6:53 am IST: And the PM speaks!
6:50 am IST: Yogi Adityanath seems to trip up a bit, calling Lucknow the "capital of India."
6:45 am IST: UP Chief Minister Yogi Adityanath addresses the people at the venue in Lucknow. Meanwhile, PM Modi has reached the Ramabai Ambedkar Maidan.
6:40 am IST: Yoga guru Ramdev is leading another programme in Ahmedabad in Gujarat.
6:30 am IST: Sand artist Sudarshan Pattnaik has paid a tribute to the event and PM Modi.
6:25 am IST: Finance Minister Arun Jaitley wishes the nation and the world on International Day of Yoga.
6:20 am IST: Visuals from the venue show people have braved early-morning rain to throng the Ramabai Ambedkar Maidan in Lucknow.
6:15 am IST: Five minutes to go before transmission begins. Watch it HERE. And 15 minutes to go before the event starts in Lucknow. Are you ready with your yoga mats?
6 am IST: Even age is no bar for people here! These are some senior Army officials participating at the Lucknow event:
5:30 am IST: And the people are already making their way to the venue!
5 am IST: The Ramabai Ambedkar Maidan, the venue of today's event, is all decked up. See for yourself!
4:30 am IST: Still about a couple of hours before the actual thing begins in Lucknow.
Till then, take a look at how yoga is being increasingly taken up across the world:
4 am IST: It's still a few hours before Prime Minister Narendra arrives at the Ramabai Ambedkar Maidan to practise yoga with 51,000 people on the occasion of the third edition of the International Day of Yoga.
Stay tuned for some engrossing information on yoga in general and the event in particular. Modi is expected to deliver a strong speech today.
Meanwhile, see the video on yoga Modi shared on Twitter: