Negative Difference in 8D

Is diff in 8A or 8D? Whether the same was disclosed by supplier in his GSTR 1 and similarly considered by you in GSTR 3B as reduction of ITC? Please ensure you give clear information for a fruitful answer

Extremely sorry. Difference in 8D. Credit note against supply was uploaded by supplier in his GSTR1. And we disclosed it in reversal of ITC in GSTR3B. 

Its again an issue with the calculation and format of GSTR-9. If the difference is equal to the credit note amount which you have reversed leave table 8 as it is. There will be no issue. A notice will probably come on inspection but your reply will suffice