For people who want to travel to Mumbai from Hyderabad, but are unable to do so because of WL in all the trains, can do so by traveling till Pune by Secunderabad-Pune Shatabdi and then take a taxi/volvo/some other train to Mumbai. The train is always almost on time. Volvo services are available from right outside Pune station. Tatkal is almost always available (except during weekends & festive seasons). Food is good too.