Late filing of tax returns

amitg (worker) (24 Points)

07 August 2011  

Hello,
I am salaried person.
In FY 2010-11, I changed my job & hence have 2 form 16
I submitted my tax details to a CA. He calculated my tax & asked to pay Rs. 15000 online using chalan 280 
I did that & gave him chalan details but he did not file my tax return before 31-July-2011

Now he is ready to do it.
I would like to know
what would be penalty amount ?
he is asking to fill ITR2 instead of ITR1 even though i have only single house property & absolutely no income from any other source than salary
Should i submit ITR1 instead of 2?

Guidance is appreciated. 
Thanks
Amit