[Q] How to change baseband?

[rishi2100]

Before i begun
i am new to tab forums...
i searched but couldn't find answer
my TAB's model - GTP7500

now my question:
Is 3G working on pershoot's CM9 nightly for indian region/ or base band can be changed from within ROM itself / or is it common for all countries???

if it is possible to change base band on any ROM than please guide me...

Thanks