Goa railway station code and "hyderabad to goa" travel? India

Goa railway station code and “hyderabad to goa” travel?

hi frnds ,

i want to travel from hyderabad to goa ,can u suggest the shortest safest way via train or bus ,also what is the railway station code
for goa and where does that train exactly stop,pls guide regarding this ,its very urgent ,thanks in advance

regards,
mav