Dimapur, being the commercial hub of Nagaland, is a bustling city with a generally safe environment. However, like any urban area, it's always prudent to be cautious. Always respect local customs, avoid travelling alone at night, and avoid isolated areas. While people are generally welcoming to tourists, it's best to stay in populated, well-lit parts of the city, especially at night. Please note, this advice is standard for all urban areas, not just Dimapur.