Bruhat Bengaluru Mahanagara Palike (BBMP) Chief Commissioner said that all methods are being adopted to bring defaulters into the tax ambit. He said drones and even GST numbers will be used to check on them. Speaking to the media on the sidelines of the day-long workshop for revenue staffers from BBMP on chalking out strategies and how to achieve increasing tax targets, he said they will be verifying properties by scrutinizing the returns filed, and will take details from Bangalore Electricity Supply Company Limited (BESCOM) for industrial, commercial and residential details, to check on them.