If you need to cancel a GST invoice raised in February 2019 for services not yet rendered, direct cancellation is not permitted. Instead, the recommended approach is to issue a credit note. This credit note should include the relevant GST details and effectively nullifies the original invoice's charges.
We are in service industry, my query is in 2018-19 (Feb) we had raised Gst Invoice, client had not booked till date and now asking to cancel it, can we cancel in Feb or March 2020.