Ya... the building at right is old station complex... though new building is used by passenger has all amenities, still passengers prefer old building entry as it is convenient. Old building still houses Rail Post office, Luggage Lock Room and I am not sure but a tea stall and 2nd class waiting hall.
This building was built by Nizams of Hyderabad in 1898-99. Some historians claim this building is even older (This I read in news paper). It is sad that SCR is going to demolish this structure to construct 2nd and 3rd phase of AWB station mega building project. Our country hardly cares about heritage.. :(