duty drawback

please let me know the following informtion;

i) your sale bill is before 01-10-2017 or after 01-10-2017

as per new rules of duty drawback w.e.f. 01-10-2017 the composite scheme of dutydrawback has been removed and fixed duty drawback can avail and take credit of IGST, CGST and SGST and discharged the IGST at the time of export with payment of tax or in case of without payment of please file the form RFD - 01 for application of refund for accumulated ITC

no duty drawback avail only fixed rate applicable

thank you sir