Originally Posted by AtlantaTaxExpert
Parminder:
Your are correct that you can file as a non-resident alien, in which case you, as an Indian citizen, are entitled to claim a personal exemption of about $3,100 and the standard deduction of $5,000.
Further, you have the option to file as a resident alien, which means filing a Form 1040/1040A/1040EZ. I believe you will find the tax to be the same (but go ahead and do it both ways to be sure).
For 2006 onward, you will have to file as a resident alien.