HDFC Bank — Credit card fraud balance withdraw

Address: caller say i m calling from hdfc bank sec 48 gurgaon

Dear sir /ma;am i got call from some one .and he say i m calling from hdfc bank credit card department and say .you are using our card from long and good profile as we can see.thats why i m calling from credit limit improve and he told me some my details just like pan card no DOB ETC,
1 I got call from this no [protected]. then i say ok. and she say after 10 minuts my senior will call you form verification.
after few moments i got call from this no [protected] and told me some details and say some balance will deduct from credit availbale limit and it will merge to improve credit limit.

so plz i m requested to hdfc bank plz take the action as soon as possible .ann return my balance.

my credit card no [protected]

my contact no [protected]
mail id [protected]@gmail.com