Have not responded to Income tax notice in the time limit specified - what to do?

The time limit to respond to a notice u/s 139(9) was 15 days, it missed the timeline to respond - what should I do and what are the consequences now?

Hey @Faaz_Shaikh ,

If you don’t file a response within 15 days then your return can be treated as an Invalid Return. Invalid return means no return has been filed for that year. And you can end up with penalties for failure to file return in time. However, you can file a revised return afterwards to save yourself from a penalty.

Here is all you need to know about Defective Return notice u/s 139(9)