India

Safety is a concern depending on where you are. For example, in the denser poorer north i would recommend traveling alone as a woman. However in the south you'll find the population is dominantly women and so services and culture revolve more around keeping you safe.

You are guaranteed to get food poisoned at some point, simply allow flexibility in your schedule and pack plenty of medicine.

Take the night trains, they're surprisingly comfy and are a great way to cover long distances without needing to check into a hotel.