CIL
Unwanted telemarketing calls

I have registered with Airtel under the Do not Disturb scheme and have got a confirmation. but still receiving calls as per the details below:

ICICI Bank Credit Card

9230561763

033 64552675 Ajay

033 64550811 Ghosh

this is a regular feature. calls from Chennai and Kolkata.

calls from other banks too for personel loans.