02 November 2009
It should have mentioned in your Purchase order as terms and conditions that you purchase against C form being a registered dealer and shold also specify the 2% CST rate in your purchase order.
Now the remedy is negotiation with your supplier and try to know their logic/view for insisting the charging of 4% tax.
06 November 2009
if the supplier has already charged 4% CST without form "C", how he can claim exmption agaist form "C"? it should be pre decided, i.e. at the time of raising P.O.
25 November 2009
To be more specific if P.O. is silent on chargeability of sales tax, it is implied that you are intended to purchase without C Form. The supplier may sale against full CST rates.