The journey from Mahabalipuram to Warangal covers approximately 800 km. You should travel to Chennai and take a direct train to Warangal, which is a major station on the Delhi-Chennai line. Driving is also possible but involves a long journey through Andhra Pradesh and Telangana.
Total Distance: 800 km by road, 650 km air distance.
The Grand Trunk Express is a convenient train for this route.
October to March for pleasant weather.