new delhi vice president m venkaiah naidu on thursday said parliament should function to debate serious issue of alleged pnb fraud by nirav modi and others that have damaged the image of the country and led people to question the entire banking systemparliament has been repeatedly disrupted ever since it met after the recess to continue the budget session today also both houses were adjourned in the morning sessiontwo three instances of nirav modi mehul choksi and vijay mallyabut they are damaging the image of the country and they are damaging the image of the systempeople are questioning entire banking system is there a structural failure is there a collusion of people at different levels if it is so then why no action is taken naidu said while addressing a realtors body credai annual conclavehe expressed hope that parliament would function and have meaningful and constructive debate on this important issuestressing that there is no use in finding fault in whose regime the frauds took place he said the lawmaker should find out where does the fault liesthe issue is of people losing confidence in the banking system this is the larger issue who is accountable and what assurance they are giving to depositors these are larger issues naidu saidwhen the proposal came up for discussion in the rajya sabha on bank frauds naidu said he had permitted the debate but unfortunately discussion is not happeningindias second largest lender punjab national bank has been hit by a fraud of about rs 13000 crore wherein billionaire jewellers nirav modi and his uncle choksi allegedly used fraudulent letters of undertaking to obtain credit from overseas branches of indian banksnaidu cautioned credai not to allow black sheep and have a self code of conduct to keep defaulters and violators out of its organisationthe law alone will not help in dealing with this disease as there are legal ways to fight cases for years together he said adding that the best way is voluntary code of conduct and whoever violates the norms such black sheep and fly by night operators should be kept at distancethis will enhance credais credibility and acceptability this is the need of hour in real estate sector