Please solve this query

 

Dear all,

Please solve the query, query is mentioned below:-

" Before making the purchase of raw material, purchase order was raised mentioning the condition on it as PAYMENT TO BE MADE @ RS10 PER KG INCLUDING CST/VAT, on the basis of this condition the material was supplied and invoice/bill was raised by the supplier as follows:-

1000 KG OF KRAFT PAPER @ RS 10/-  ========  RS 10000.00
CST @ 1%                                          ========  RS    100.00
LESS DISCOUNT                                  ========    RS    100.00
NET AMOUNT                                    ========    RS 10000.00

ONLY THESE ARE THE FACTS, IN CASE OF DISCOUNTS ( NO NEED TO THINK WHETHER IT IS TRADE OR CASH DISCOUNT)

My query is " should we raise a debit note to the supplier regarding CST amount charged by the party separately or it can be treated as waiver as the same amount was shown as discount" Friends please reply very quickly the amount involved is not only Rs 100 it is running into lakhs and we as a professional must find out the way to recover it from supplier