[mechanist]

Hi,
I'm on H1B visa and my wife is on F1 visa (she has Graduate research assistanceship and her tax status is resident alien). We both are from India.

My question is:
Should we file jointly or separately to get the maximum return?

Thanks in advance.

[MukatA]

Do your returns both ways and figure out.
Normally, it is always better to file joint return.
Read Your U.S. Tax Return: Filing Status for Married

[IntlTax]

If you are both already treated as resident aliens, you will almost certainly owe less tax by filing jointly.