In my view writing( selling ) options is the most profitable proposition most of the times, but it requires huge
margin. That is why most of the retailers are not sellers, but only institutions and FIIs. And that is the reason
why retailers mostly end in losses. For buying either Put or Call, small margin will do. That is why option
option trading is heavily loaded against retailers. Margin is decided by I think NSE. So all retailers should
take up the matter with NSE or SEBI. In case MTM falls on selling, brokers can square up the position of
retail sellers against thr margin money. i hope my above view is correct, if wrong, members can give
their views. My point is that same margin should be required for both buying and selling by retailers.