 Considering the multiple complaints against the misdeeds of the brokers, in 2016, SEBI cracked the whip on the top powerful brokers by initiating an audit against those who sold NSEL contracts to their clients often presenting them as an assured return product, which in reality, were not.Five top brokers are under scanner as they have the highest exposure to NSEL from 2011 to 2013.These brokers have been facing the regulatory heat, as SEBI has issued show cause notice for various irregularities done by them.