PURCHASE AGAINST "C" FORM

WE ARE A WORKHOP DEALING IN REPAIR & SPARES OF AUTOMOBILES. WE PURCHASE CONSUMABLES LIKE PAINT , THINNER ,HARDNER ,EMERY PAPER ETC . FROM OTHER STATES AGAINST "C" FORM . HOWEVER WE DONOT CHARGE THE SAME AS SALES BUT CONSUMABLES, NOR ARE THEY TAKEN AS PURCHASE. WE DON'T CHARGE FOR PAINT ,EMERY PAPER ETC IN OUR BILL SEPARTELY . BUT SAME IS TAKEN INTO ACCOUNT IN LABOUR COMPONENT IN THE BILL.

MY QUERY

1) CAN WE BUY PAINT ,HARDNER ETC AGAINST "C" FORM IN CASE OF THIS TRANSACTION?