Updated Return and Refund

Biblio Phile (1 Points)

20 March 2023  

I submitted ITR for the AY 2021-22 and got a refund of around 49000 rupees. However, I realise now that I have made several mistakes in it. I deserved no refund. Now, I want to file updated ITR. 

How do I show that calculations? The refund, the TDS etc. And do I need to choose within 12 months or 12 to 24 months option?

Thanks