Ded u/s 80C & other sec chapter VI not Considered by CPC

Hi,

Today i received a mail from CPC Bangalore stating that i have to pay addition tax  (along with interest u/s 234)  for the AY 2010-11 and my suprised to see that IT department has completely not considered Rs.100K  "Deductions u/s 80 C and other sections of chapter VI".

They have also asked me  to pay the payment within 30 days for the receipt of the mail. The amount is Rs.20K (approx)

Can you kindly let em know what approach i have to take to handle this issue. (As i am out of INDIA,i am not sure how to handle this issue and in panic situation)

Do suggest.

Thanks for your time and patience.

Wish you all a very HAPPY NEW YEAR.

Regards,

Parveen