HDFC Bank — Too many marketing calls

Address:	everyware in India
Website:	hdfc.com

Team,

My number is in complete DND, have never opted any marketing calls from any banker and NBFI. I have told the same message to each and every caller to remove my number from calling list and they say they will update in their data base.
But no use everyday getring calls new numbers and tired of blocking the calls after answering the same thing again and again.
Can you please help me in removing my contact in any of the marketing list on priority.