Hello,
As far as my understanding goes, it means that your application has been filed and has been submitted successfully with Hdfc. No mistakes were observed in the filed application or the minimum data required to submit the application is in order.
Just visit an Hdfc branch for Kyc with your original documents such as Pan, adhaar and credit card which was used for C2C application.
Be prepared to give atleast 30-60 minutes of your time at the bank as the rush in HDFC has become similar to SBI these days.
You should be good to go then.
Thanks!!