Yes — New Delhi is generally safe for tourists who take standard urban precautions. Millions of international visitors travel to Delhi each year without incident, and the central tourist areas (Connaught Place, Lutyens' Delhi, south Delhi neighbourhoods) are well-policed and well-lit.
Practical tips: Use Ola or Uber app-based cabs rather than hailing unmarked taxis, especially at night and from the airport. Keep a close eye on bags in crowded areas like Chandni Chowk and major railway stations, where pickpocketing does occur. Agree on fares before boarding auto-rickshaws if not using the meter.
Women travellers should be aware that street harassment can occur in certain areas; travelling in groups, dressing modestly in Old Delhi, and using app cabs after dark significantly reduces risk. The tourist police help desk at major monuments is a reliable first point of contact for any issue.
Food safety: stick to busy stalls with high turnover for street food; bottled or filtered water only. Delhi Belly is a real risk in the first few days — carry oral rehydration salts and go easy on the spice initially.
The air quality index (AQI) in Delhi can reach hazardous levels in November–December due to crop-burning season and winter inversions. Check AQI apps (IQAir, SAFAR) and carry an N95 mask if visiting during this window.