Excise exemption for polyester fibre and yarn when certified for handloom Poly Vastra, subject to reversal of input credit. A Central Government direction under section 11C provides that excise duty need not be paid on specified polyester staple fibres and yarns manufactured or purchased by the Khadi and Village Industries Commission or approved organisations for defined past periods, provided an authorised KVIC certificate confirms use solely in handloom Poly Vastra and the claimant unit reverses any input credit taken on inputs used in manufacture.