Both trains are correct. One of the routes is called a "Slip Route". This means that some coaches of the train are taken through the other route. So, both trains share part of the route. After a junction station, the slip route is diverted through a different track.
Other bloggers, please correct and/or elaborate on my explanation above.

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both are right, few boogies is deviated to hubli

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few boogies are deviated to hubli and the rest to hydrabad

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this train has almost equal number of coaches to both the destinations. you have three trains coming from Kolhapur, hyderabad and tirupathi to guntakal from 1 am as haripriya.exp and rayalseema.exp respectively.Here half the coaches from Kolhapur are to hyderabad and tirupathi bound rayalseema respectively. Half coaches from the hyderabad and tirupathi train form the haripriya exp and go to kolhapur. the leave guntakal by 2:30 am. so the train number for train staring from hyderabad and tirupathi and going to kolhapur is same as the original trains. they only change form guntakal and get the number of haripriya.exp

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