With increased use of credit cards, here is something that you must be aware off, before you apply for or use your credit card.
All trasnactinos or monthly records are submitted with Credit bureau India, a govt. nodal agency managing records and IncomeTax office most probably can access such records.
Also, if you faulter on payments and related, same is submitted in your monthly records to this bureau as well as to a common directory maintained by all credit card companies whre they maintain database of defaulters. So, once in the list, you will be blacklisted for future delaings with that and other banks as well. If you later repay the disputed amount, your name will be withdrawn from this common directory/ database but the informatino does not get altered with bureau. It may get updated but records towards defaulting remain there.
Fine prints and terms specify this, but many just miss out or ignore the information untill they actually landup in trouble.