I am from India, working in USA on H1B visa since 3rd Sep 2011.
In fiscal year 2011 I completed less than 180 days of stay in USA.
I am a bachelor (no dependents). I am employee of a Indian Company having office in India and USA. Gross income in USA from 3rd Sep 2011 till 31st Dec 2011 is 20,000 USD. Which kind category of returns I fall in ? Either 1040NR or Form 1040NR-EZ ? Can I file it online ?

You file file nonresident tax return Form 1040NR or 1040NR-EZ. You can claim moving expenses if not paid by your employer. Your U.S. Tax Return: The U.S. Visas