You can take a prepaid taxi to MDI Gurgaon from New Delhi
Railway Station. If you experience some problem in taking
a prepaid taxi (run by Delhi Traffic Police) then there are
private taxi's available, they should charge somewhere
around Rs 300 to Rs 400 but you never know what Taxi waala's
might ask for in Delhi.. :(
There is public transport available but I guess it will be too
much expect someone from outside to manage using Delhi
Buses etc but still I will tell you how to go about it.
From the Ajmeri Gate side of New Delhi railway station
you can get a bus number 729 to DHAULA KUAN. From
DHAULA KUAN take DTC buses going to GURGAON and MDI
is on the way (But please ask the conductors for guidance
or you might end up somewhere else)
Hope this helps, for any assistance on that day call
me on 9868892794.