Kathmandu vs Delhi

How do Kathmandu and Delhi compare?

The South Asia capital comparison — both chaotic, both spiritually layered, but Delhi is 20-million-person Mughal plains and Kathmandu is 1.5-million-person Himalayan-foothill valley. Delhi runs from Old Delhi's Chandni Chowk and Jama Masjid through Lutyens' New Delhi to South Delhi's Hauz Khas, with Humayun's Tomb, the Qutub Minar from 1199, and Karim's mutton korma since 1913. Kathmandu sits at 1,400 m in the Bagmati Valley, with Durbar Square's pagoda-roofed temples (rebuilt after the 2015 quake), the all-seeing Buddha eyes of Boudhanath stupa, the monkey-thronged Swayambhunath, the cremation ghats at Pashupatinath, and Thamel's tourist district crammed with $40 trekking-permit shops and momo joints.

Delhi runs $30 hostel / $70 mid / $190 luxe with safety around 60. Kathmandu is similar at $25 / $60 / $160 with safety around 68 — Thamel petty theft and altitude-related taxi inflation are the minor frictions. A Delhi thali is $2 versus a Kathmandu set of momo-and-thukpa at $3, and an Everest beer is $3 in Kathmandu versus a Kingfisher at $2 in Delhi. Climate diverges sharply — Delhi is North Indian plain (45°C summers, foggy winters), Kathmandu's valley elevation keeps it 18-25°C most of the year with cold January nights and a heavy June-September monsoon that obscures Himalayan views. Cultural depth tilts to Delhi for sheer Mughal weight; Kathmandu wins on Newari temple architecture and proximity to the Annapurna and Everest trailheads.

Delhi's window is October-March and even then November-January AQI often tops 400. Kathmandu's window is October-November (post-monsoon, clearest mountain views) and March-April (rhododendron season). Pro tip: in Kathmandu, buy your TIMS card and Annapurna or Sagarmatha trekking permits at the Nepal Tourism Board office in Bhrikuti Mandap rather than via Thamel agents — same-day, half the price, government-issued. In Delhi, use the metro and stick to Uber/Ola at night; the Airport Express T3-to-New Delhi is 22 minutes for $2. Pick Delhi for Mughal monuments, North Indian food, and a true megacity. Pick Kathmandu for Himalayan trailhead access, Newari temples, and a much smaller capital you can walk in a day.