2) and nizamuddin to airport..
** The best option available to you for hiring a auto from prepaid booth to delhi air port either for domestic or International ,the distance would be around 20 km for domestic and 25 for international fare would be around Rs 100 to 150/= and travel time would be around one hour in normal time.
** Taxi:- You could get a Taxi from the Station itself. You could either take a pre paid taxi or haggle with the taxi drivers. Might Cost around 250-300.
**Easy...
more... Cabs:- You can also Book a luxurious AC Cab for around Rs 15 Per km. You can dial 91-11-43434343 and pre book your cab.Might Cost around Rs 400.
Take your pick