I have heard of ATM frauds in other countries and it is the first time I am hearing it here. However be alert on it. You should complain the same to Police as well as they should be aware of such crimes. The bank can find out who used the ATM at that time from their CCTV footage if you are using the atm in the bank itself but I don't know if they have any such measures for their atms in different shopping malls.