I've done BE in information science & MBA in marketing & finance & then have 2-years of gap. Which is the best options for further studies?

What you want to do further will only depend on 2 things (ALWAYS) 1) What you did till now 2) What you want to do in future. Think of yourself as a passenger waiting for a bus at a stop. So either you don't get a direct bus and have to change buses or you might get a direct bus. Either ways if the