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If one has initiated the revised KYC before January 1 2012, he has to do it again or else he will not be able to do any new investments. However, if you have done after January 1 this year, there is nothing to worry.
Incase, you don't remember whether you have before or after Jan 1. All you need to do is visit ww.cvlkra.com click on KYC Inquiry and submit your Permanent Account Number (PAN).
If the result shows MF - VERIFIED BY CVLMF then you need to submit new KYC form.However, if it shows MF- VERIFIED BY CVLKRA, means you are already new KYC norm compliant.