20 May 2019
Go for this rule, you are not able to do this. Attention of all taxpayers is invited to Rule 46 (b) of the CGST Rules 2017, which specifies that the tax invoice issued by a registered person should have a consecutive serial number, not exceeding sixteen characters, in one or multiple series, containing alphabets or numerals or special characters – hyphen or dash and slash symbolized as “-” and “/” respectively, and any combination thereof, unique for a financial year.