MUMBAI/NEW DELHI: For many Indians, yoga is not reserved for studios, retreats or subscription memberships. The centuries-old Indian tradition is commonly practised in parks, schools and community spaces, and its accessibility is often cited as a key reason for its popularity. More than a decade after the United Nations adopted an India-backed resolution declaring Jun 21 as the International Day of Yoga, the occasion is marked around the world through mass events and public celebrations.