I have a sleeper class ticket which is in waiting list. The current status is GNWL161/WL93. Only 2 days are left for the journey and I don't think it will get confirmed. I need to travel at any cost as there's no feasible alternative. Will I be allowed to board the train? Can I travel with waiting list ticket on trains in India? What does the rule book say? Does a TTE allow passengers to travel in reserved compartments with a waiting list reservation?