1. Tax invoice (1) Subject to rule 5, a tax invoice referred to in section 23 shall be issued by the supplier containing the following details:‑(a) name, address and GSTIN of the supplier;(b) a consecutive serial number containing only alphabets and/or numerals, unique for a financial year;(c) date of its issue;(d) name, address and GSTIN/ Unique ID Number, if registered, of the recipient;