List of active traders

Does exchange maintain a record of trading institutions, brokers and retailers with them? Is such list public on their website?

No idea about institutions but there is a list on NSE, which contains details about Brokers and Active Clients, you can check it out here.

@ShubhS9 does the active clients list include institutions ? And most might have more than one account right ?

you mean clients sitting in institutions? @Arpan