What is the easiest path to reach New Delhi from Vijayawada?

best way catch the train and reach vijayawada. Any train going to chennai from new delhi will go via vijayawada and stop also.
By flight: catch the flight to Hyderabad/chennai/Bangalore from delhi and catch train or bus or flight from there to vijayawada.

If you want to drive your self get on to north- south corridor which will connects kashmir to kanya kumari after reaching hyderbad move to wards vijayawada high way which is NH 9