I had supplied STEEL material to Fabrication unit. Buyer Party is from Mudhol which is registered under TIN & consignee party from Hubali is not registered under TIN. I had charged CST @ 4 % in Invoice as Party is not able to submit either C form Or E SUGAM number. as I had charged CST @ 4 % that is as good as unregisterd dealer. Now CheckPost Officer is not allowing to Pass from Checkpost in abscence of E sugam number. Also It is not possible for party to submit E sugam number as Hubli unit is not registered. Also Check Post Officers are not allowing Vehicle to Go back to original destination in case cancellation of order to avoid Conflict & confusion. What should I do as Vehicle is blocked on checkpost & officers are not giving any clarification