If you take the train, sleep with your shoes on. My dirty, travel-worn and generally beaten-up sneakers were stolen from the foot of my bed while sleeping on an overnight goa-bombay train. I was in a 2nd class sleeper car, where there were no private berths. Other than that the experience was worthwhile -- everyone shared food and conversed with one another. I was surprised at this, but someone said "We are all each others brothers and sisters". It definitely felt that way. But for 21 hours, I'd fly.