I have talked to an HR regarding a job opportunity and we had a discussion about CTC. After that, HR sent me a mail regarding the discussed points.
As we discussed your CTC will be '00.00'.
So should I tell truth to HR or no need?
My answer would be : it depends.
There is a possibility that, according to the organizational policies, the package you ought to get is higher than you quoted, and they are offering you the company-standard package (which is higher than your expected number).
However, given that you have interview scheduled, you don't want to lose a chance because of any human errors in communication. So, if there is a big difference, better to have it clarified with HR.
After all, we all want to earn our paychecks.