Sir i had activated DND service on my mobile 9490848141 on 12/21/2008 7:14:11 AM(source http://pdnc.bsnl.co.in/registerPhnNoforDNC.aspx)
but still getting unwanted marketing calls. called to customer care got an answer that DND is not working from 7 moths recently i got a call from 9490056700 on 8th sept 10 at 6.32Pm i dont want these calls any more