The distance from Thiruvallur to Delhi is roughly 2200 km. The most efficient way is to take a suburban train to Chennai Central and board a long-distance train like the Grand Trunk Express or Tamil Nadu Express. Alternatively, fly from Chennai International Airport to Indira Gandhi International Airport for a quick 2.5-hour journey.
Total Distance: 2200 km by road, 1750 km by air.
Opt for Rajdhani or Duronto trains for faster travel and better service.
Book flights at least 3 weeks ahead for lower fares.
October to March for pleasant weather.