Pnelaty on tax from interest income

Hi,

I have tax liability of around Rs 8000 for interest income for the financial year 2011-2012. I am under 30% slab.

This 8000 includes additional 20%(10% TDS done by bank) on my fixed deposits and 30% on saving bank interest?

My queries are:

01. Which challan should be used to deposit this tax?

02. Do i have to pay any penalty? What is the limit after which one has to pay penalty?

Thanks in advance for your replies.

Regards,

Munesh