Indira Gandhi International Airport is the arrival point for many visitors into Delhi. The airport has been taken over by an international consortium. Most terminals have basic facilities like money changing and restaurants, but the major problem remains overcrowding — during the peak hours.

Buses arrive from Kathmandu and Chitwan in Nepal (36+ hours) and virtually every city in India. Not as comfortable as the trains, buses are the only choice for some destinations, mainly those in the mountains.

Delhi has a confusing slew of inter-state bus termini (ISBT), which all have two names to boot. The Delhi Transport Corporation is the major operator, but every state also runs its own buses and there are some private operators too.

Trains arrive at one of three main stations: Delhi Junction, also called Old Delhi or Purani Dilli, the second at New Delhi which lies in Central Delhi, and one at Hazrat Nizamuddin a few kilometers to the south. (A very few trains also use Delhi Sarai Rohilla or Delhi Cantt stations.) Delhi Junction and New Delhi Railway Station are now conveniently connected by Metro Line 2, just minutes apart. It will take around 40 minutes to an hour to travel from the New Delhi Railway Station to the airport by car, depending on traffic.

A ticket office open to all is on the road to Connaught Place with longer hours and often has waiting times not much longer than at the tourist booking office, you will need to know the number or name of the train you want to take. Easiest of all, though, is to book on-line through the Indian Railways booking website