The main train runs daily from Hyderabad Deccan to Tirupati via Guntakal Jn. bearing Train No. 7429.
The train also carries some bogies from Hyderabad which are detached @ Guntakal Jn. and attached to another connecting train going to Kolhapur (Chhatrapati Shahu Maharaj Terminus).
The route from Guntakal Jn. to Kolhapur is called a slip route in Railways Terms and also carries the same train No. For passengers, they have not to shift over to another train.
Here...
more... in this website for the convenience of the passengers, the same train is shown one more time with suffix - 'slip' to carry the above meaning.