In late March 2020, the national highways number 19, 65, and 48 branching out of Delhi, Patna, Mumbai, Bangalore, and Kolkata were crammed with a different kind of traffic— instead of the rustle of rolling rubber on the scorching asphalt, a thud of marching human feet, a clatter of trolly suitcases, push carts, bicycles, and make-shift wheelchairs carrying the young and the elderly met the curious eyes of the onlookers, let alone the news-hungry camera lenses.