Bhilai is generally safe for solo female travelers. It is a well-developed and modern city with a friendly populace. You are expected to respect local customs and dress modestly. However, like anywhere else, you need to exercise basic safety measures such as not walking alone late at night in deserted areas, keeping your belongings secure, and not sharing your travel plans with strangers. Regular police patrols and a respectful society contribute to its safety but it's always good to stay vigilant and informed.