Pls register here https://onlineservices.tin. nsdl.com/TIN/PanRegistration. do to view TDS credit during the year in your PAN account.
By registering there, one can verify amount of TDS deducted from your receipts and TDS credited in your own a/c.
It would facilitate to get easy refund, in case person who has deducted deposit TDS in wrong PAN or does not deposit it at all.
It is cross check.