This is with reference to issue of TDS certificate for the FY 2012-13.
As per my knowledge, these certificates can be issued on own stationery/paper by deductor after filing Q-4 TDS Return when deductor is other than Company Assessee or Bank.
When deductor is Bank or Company Assessee, they have to issue the certificate by downloading the certificates from NSDL site.
Correct if guidelines/rules are otherwise.
T & R
KP