Hi,

I was on in US H1B visa for 2 months. My Employer has a fixed base in US.
All taxes i.e. federal income tax, social securty tax, medicare tax and state income tax were deducted at source. Cannot I file a tax return online?

Thanks,
Meha

You will file nonresident tax return. It can not be efiled. You can deduct traveling expenses.
Read about H1-B tax filing: Your U.S. Tax Return: The U.S. Visas

You can also deduct your daily living expenses if your employer did not reimburse you with tax-free money.