We have a service oriented unit.We are registered under the Service Tax registration and have the number also.But not registerd under the Excise. For setting up the unit we are purchasing the capital goods and paying the excise duty for the same. Can we take the capital goods CENVAT credit against our service Tax liability in this case..?? Experts are saying for takeing the CENVAT credit, purchase invoice contains the buyers ECC number is a mandatory one, but not seen in any of the CENVAT rules.