haan ji
as circular per circular , aap bill ya credit note issue kar key expire goods wapas karney key liye.
aur suppose aap ney bill issue kar diya expired medicine ka to supplier/manufacturer ko toh , manufacturer/supplier us expired medicine ko destroy kar deta hai & as per section 17(5) , manufacturer/supplier ko bill per charged ITC reverse karna padtha hai.
note : agar aap credit note jo ki as per provision of section 16 cgst act key anusaar next fy key sept- month key baad issue karta hai to uska itc aap reverse nahi kar saktey & moreover the supplier also bhi apni output tax liablity reduce nahi kar sakta ... aur ish traha ka credit note aap ko portal per bhi upload nahi karna hai