The journey from Nellore to Chandigarh is a massive cross-country transit covering over 2300 km. The most practical way is by train, usually involving a change at New Delhi. You will traverse the entire length of the country, moving from the tropical coast to the foothills of the Himalayas. Air travel is the fastest option, with flights from Chennai to Chandigarh.
Total Distance: Driving distance is 2300 km; straight-line air distance is 1800 km.
Break your journey in Delhi to avoid fatigue.
September to March, as Chandigarh summers are extremely hot and winters are chilly.