Regarding issue GST Invoice

If the value of multiple invoices is less than Rs. 200 and the buyer is unregistered, the seller can issue an aggregate or bulk invoice for the multiple invoices on a daily basis.

For example, you may have issued 3 invoices in a day of Rs.80, Rs.90 and Rs. 120. In such a case, you can issue a single invoice, totaling to Rs290, to be called an aggregate invoice.