Nabadwip is generally safe for solo female travelers. It is a popular pilgrimage site known for its religious harmony and peaceful atmosphere. Like any other place, it's important to take standard precautions such as avoiding isolated areas especially at night and being mindful of pickpockets in crowded areas. It's always handy to keep local emergency numbers. The locals are generally friendly and hospitable. However, as with any travel, keeping alert of one's surroundings is crucial.