how to check is .csv file is corrupted or not

Does corrupted file mean a file that cannot be opened at all due to some malfunction or damage?

I assume if a file is corrupt then any function or smart service trying to read data from it will not behave as expected. So you can try reading data from the file and log accordingly if its successful or not.

A CSV file is just text. So technically it cannot be corrupt or encrypted. But it might happen that it does not follow the expected schema. You could try to read the first line and check the column names against your expectations.

If you're getting "bad" CSV files, open one in Notepad++ and see what text it contains, and check to see if the 'bad' version is consistently the same.

If it's consistent, then use the "read text from file" utility to do an initial reading of the CSV file and scan for some of the text you'd expect to (only) see in the 'bad' file.  If so, route elsewhere.  If not, attempt to read it using your in-process reader of choice.  (Note: this requires you to do the reading via a process model, but I'd recommend you do that in any case).