It is easy to track your credit card online. You just need to log on to the HDFC website, and hover your cursor on “products”. A drop down would appear from which you need to choose “credit cards.” An option with “Track your credit card” will appear. Once you click on that, you will be prompted to enter the 16-digit application reference number and mobile number (which you have provided in your application form). Once you submit these details, your credit card status will be depicted.