All National Highways have been re numbered.
So now North South Highways are numbered Even, and East West highways are Odd numbers
Print this map and past on car windshield so you don't follow a friends instructions on old highway number and go to the wrong place.
The old NH1 which was famous, is now from Leh to Baramulla. So if a friends tells you take NH1 to Ambala, don't fly to Leh and catch NH1, hahaha.
