Train Travel.
Train traveling in India is a beautiful experience. You meet people from various backgrounds, and it is really interesting how the stories unfold.
As a kid, the travel to my native place took us 2 days. So, it used to be really interesting on how we boarded as strangers, became companions and sometimes friends in this journey of 2 days.
A famous director (Imtiaz Ali) once said, if you want to know about India, travel in the second class compartment of their trains. I cannot agree more :)