The present disclosure envisages an acoustic feedback cancellation system for assistive listening device. The system comprising a summation unit (12) to generate error signal e(n), a first adaptive prediction filter (14) to generate a filtered error signal , a second adaptive prediction filter (22) to generate a filtered signal, a feedback cancellation unit (15) to update a pre-defined rules, a shadow filter (32) to estimate the feedback path, a feedback path estimation filter (34) to generate the estimated feedback signal.