It does not seem that Osmania University 2nd year previous question papers are available online.
- Secondary online option
Again it is uncertain if this site will also lead to any Osmania University questions, but it at least provides some information and avenues you may be able to use in order to prepare for whatever is upcoming for you.
You may also wish to try the Osmania University website. Their website may be able to offer you some information as to where to get older papers. Try contacting the University directly. Given that you want previous years you should have no problem getting them.