Big discount brokers like Zerodha with more than 5 lakhs active clients must build up the active protest with their clients together. For example, if Zerodha made a draft of protest, make a logical representation and send them using their official email and collect the physically signed form along with client Id and details. Then submitting such form few lakhs together can stop SEBI easily and attract the required attention from media or political parties.
Basically, to build up such large-scale protest traders need numbers.
Brokers always fear SEBI but now their back is also on the wall, so they must also think about it seriously.