Hello,
I worked in CA under OPT (F1 visa) from August 2011 to June 2012. I am trying to file taxes for federal and state income 2012. I came to the States in January 2007 under F1 visa and 2012 was my sixth calendar year. I came back to my country permanently in the middle of June 2012.
My questions are...
1. I do not have address in the states. Is it okay to put my country's address when I file taxes?
2. Which forms do I need to use for filing CA state income tax? Since 2012 was the sixth calendar year, I am considered as a resident alien for federal income tax purpose. But I am not sure if I'm considered as a resident or nonresident alien for CA state income tax purpose.

Thank you very much for your help!

1. You can file from India and give your India address.
2. For 2012 you are resident for federal purpose.
3. You earned while you were in CA so you are part year resident of CA for 2012. For CA form, check CA website.

Given your student status, you can probably make the argument that you were a NON-resident of California instead of a part-year resident, but you still have to pay taxes for wages earned inside of the California state borders, so the tax will probably be the same.

Both the IRS and California allow you to file electronically using an address in India IF you choose to file as a resident for all of 2012 for the federal return. Hopefully, you kept your U.S. bank account open for direct deposit of the refund.