A week after celebrating Diwali, I found myself in the Delhi Airport, waiting for my friend Vedant.  I was coming from my home base in Udaipur and had already passed through security. We met in the food court where we destroyed some chicken tikka before heading to our gate for our flight to Guwahati.  This weekend we'd be in Shillong, the "Scotland of the East," a hill station located in the state of Meghalaya.  We were off to explore the eastern hills of India and… to attend a two-day rock music festival, NH7 Weekender...