The journey from Jalore to Hyderabad is approximately 1400 km. The most practical way is to take a train from Marwar Junction to Secunderabad or Hyderabad Deccan station. This journey takes about 28 to 32 hours. You will cross through Rajasthan, Gujarat, Maharashtra, and Telangana.
Total Distance: 1400 km driving distance, 1200 km air distance.
Check train schedules on the IRCTC website.
October to March for pleasant weather in Hyderabad.