VERY URGENT!!

Respected Sir / Madam,

An assessee filed his ITR 4 for the A.Y. 2019-20 within due date but forgot to pre-validate his bank account before e-filing his ITR (as this is a mandatory requirement for getting refunds w.e.f A.Y. 2019-20). It's almost six months now, but his ITR has not been processed & hence no intimation u/s-143(1) has been received.

In response to a grievance submitted by him, he received the following response from CPC :

"Dear Taxpayer,The processing of your Re turn (ITR) is pending for want of verification of the correctness of certain claims made by taxpayer in the ITR. This is likely to take few months depending on the swiftness & accuracy of taxpayer response. Taxpayer may receive further communication from the Department seeking responses to specific claims made by taxpayer in the ITR which have been identified for further verification. Please do respond with the information sought, at the earliest, as the refund will be generated only once the processing of the ITR is completed."

After this, the assessee pre-validate his bank account succesfully, which he mentioned in his ITR for refund. But the email ID linked with the bank pre-validated is not same as mentioned in ITR already filed. Now, does he require to change ITR Particulars option in his IT account for the email? Is it really relevant? Or does he needs to revise his ITR before 31-3-2020? It's already 20 days now, no response has been received from CPC regarding ITR processing.

Please respond as it is really very urgent. Thanks in advance.