Where can I get large amount of food for relatively cheap in Hyd?

So I'm a broke college student with a big appetite lol. Hostel food sucks and I was honestly fed up with it so I started eating out most of the time, but eating out is just so expensive nowadays. I want to fill my tummy without having to spend a bomb on good food. What are some places in Hyd where I can get a lot of food for relatively cheap? Any help is greatly appreciated.