Republic Day (26 January): India's most spectacular national event — the military parade along Kartavya Path features elaborate state tableaux, military fly-pasts, and folk performances. Book seats via the Ministry of Defence portal weeks in advance.
Holi (February/March): The festival of colours transforms Delhi into a riot of powder paint, water balloons, and festive sweets. Organised celebrations in DLF grounds and select hotels are safest for tourists.
Surajkund Crafts Mela (February): Asia's largest crafts fair in Faridabad (30 km south) — artisans from across India and neighbouring countries display traditional crafts over two weeks.
Delhi International Arts Festival (January): Concerts, art exhibitions, theatre, and film screenings across the city's major cultural venues for two winter weeks.
Diwali (October/November): The festival of lights turns Delhi's markets into luminous spectacles of diyas and lanterns. Connaught Place and Chandni Chowk are especially atmospheric though air quality deteriorates from fireworks.
Eid-ul-Fitr & Eid-ul-Adha: Jama Masjid hosts Delhi's most atmospheric Eid prayers, drawing tens of thousands before sunrise, followed by communal feasting in Old Delhi's lanes throughout the day.
Delhi Half Marathon (November): One of Asia's largest running events — 30,000 runners on a course that passes the city's major monuments in the cool early morning.