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There ought to be several doctors in a big city like Hyderabad.
You should look out for a specialist > Internal Medicine > Chest Physician > Tuberculosis
specialist - in ascending order of priority.
You can search in Google!
Any tertiary care Multi Speciality Care hospital will have one
Any Post-graduate teaching / Medical College Hospital will have one
It is not ethical from a different place to specify one by name!
Your present doctor - who ordered the X-rays - will be the best one and be able to guide
Wishing speedy recovery