With just a few hours until the world's largest electoral exercise is set in motion, what better way to track the pulse of the Indian voters than a train journey on the world's largest rail network. NDTV's Marya Shakil caught the Kerala Express from New Delhi to Thiruvananthapuram. Covering 3,000 kms across eight states, taking nearly 50 hours, she caught up with her co-travellers about the journey of India's democracy and what the elections mean to them.