The journey from Nelakondapally to Chennai covers about 500 km. You can reach Khammam and take a train to Chennai. Driving via NH 16 is also a viable option. The journey takes approximately 9 to 10 hours by road.
Total Distance: 500 km driving distance, 420 km straight-line air distance.
Check for train availability on the IRCTC website.
November to February, when the weather is pleasant.