6. Dear Shri Nikhil Virkar Ji,
W.r.t. your post at serial no. 4, my views are as under:
1. There is not time-limit to issue credit-note u/s 34 (1) in my view. Furthermore, issuance of such credit-note u/s 34 (1) is optional for supplier & not mandatory.
2. However, there is time-limit to declare such credit-notes in return filed by the supplier. And same is lapsed in given case on 30.11.2022. In other words, there is no option left with the supplier to adjust taxes paid earlier against current liability, against credit-note u/s 34 (1) if issued now.
3. Net-effect of above two Paras (& to avoid another set of needless controversies) is that it is better to settle disputes through financial credit-notes after 30th Nov, instead of credit-notes u/s 34.
4. Supplier can still issue financial credit-note now for Rs. 75 (& not Rs. 88.5) against taxable-value only and recipient can avail full ITC of Rs. 18 (i.e. even though taxable value is reduced to Rs. 25 as tax charged remains at Rs. 18). And recipient will pay supplier Rs. 43 before availing ITC of Rs. 18. (Here, it is presumed that supply is otherwise genuine in all respect and there is no effort to shift excess ITC available from supplier to recipient, in disguise of dispute about billing-amount).
5. Alternatively, Supplier can issue financial credit-note now for Rs. 88.5 (i.e. Rs. 75 for taxable value of Rs. 75 and Rs. 13.5 for tax charged) and recipient can avail ITC of Rs. 3.5 & not Rs. 18 (upon paying supplier Rs. 28.5). In this case, supplier needs to bear additional cost of Rs. 13.5 against gst paid at the time of original invoice.
These are ex facie views of mine and the same should not be construed as professional advice / suggestion.