IT REFUND AY 2020-21

Actually the refund you claim in itr has been reasseed by income tax authority u/s 143(1) and they reassess the return filled by you and as per their calculation the refund calculated by them will be credited to you and refund processing takes time. If there is any rectification order send by the authority then you have to file the return again otherwise you need not to worry refund will be credited to your bank account and you can also track your refund in NSDL portal

Does you get your intimation letter if yes then see the difference and check why you are getting less refund
and check if you have any out standing demand earlier
refund will be comes to you by end of the month

You have to check intimation received by you for income working of what you filed and what has been considered by CPC. Wait for few days for updates on site in you PAN log in

At present, the website says, "Intimation Order" , is not available, and also, in the Submit Rectification Request Link, A. Y. 20-21 not shown.
So, as Pravin suggests, I shall "wait" for the updates to reflect on the website.
Thank You all, for your prompt and kind response.

The intimation letter will be in your registered email check that email if you not got it then wait

Check Intimation order either in Inbox or also check in Spam folder.