The journey from Tuni to Delhi covers about 1800 km. The most practical way is by train, which takes about 30 to 35 hours. Alternatively, you can travel to Visakhapatnam and take a flight to Delhi.
Total Distance: Driving distance is 1800 km; straight-line air distance is 1500 km.
Direct trains are rare; you may need to change at Vijayawada.
October to March, when the weather is pleasant.