Turnover exceed 20 lakhs in FY 20-21 but return not filled

DEEPIKA BANSAL (STUDENT) (23 Points)

24 May 2021  
Dear experts

A person has 194J income as per 26as which exceed the limit of 20 lakhs in march month. The person was unaware of the limt so didn't take gst registration and neither filed any gst return. The person is a lecturer in an institute which give online coaching to students which have headquarter in bangalore but the person is delivering his services from delhi. Also the invoice from same is generated in same month but amount will be credited next month. so plz suggest me further action. Is there any possibility that he can save this gst