As per GST Act, we have to mention all record kept i.e. Challon Number in GSTR1.
In our case we have not mentioned any challon number under Material supply under warranty , Inter Unit Transfer, Returnable Goods in particular month.
Since our GSTR1 for Mar-18 is due can we mention altogether challon number i.e. (July-17 to Mar-18) in Month of Mar-18.
User Queries GSTR1 Omission: Can Omitted Challan Numbers Be Added in March 2018 Return? Advice to Notify GST Office. A user raised a query regarding the omission of challan numbers in GSTR1 for material supply under warranty, inter-unit transfer, and returnable goods. They asked if they could mention all challan numbers from July 2017 to March 2018 in the March 2018 return. Responses included advice to mention invoice numbers for supplies and suggested informing the jurisdictional GST office of the omission to correct the mistake. It was noted that GST law allows for corrections in subsequent returns, and it is advisable to notify the department to avoid future issues. (AI Summary)