Intimation u/s 245

harsh(ca finalist) (i) (62 Points)

28 April 2012  

i have recently received letter from IT about payment of tax of AY 2008-09 u/s 143(1)

i have form 16 issued by employer and the TDS deduucted is only amount which is my tax payable in the AY 2008-09

further i have submitted my investments u/s 80c to avail exemption of rs.100000 and my tax liability during that year was nil

Now they send me demand notice for payment of tax with interest.

What to do nowwww?