Those are charged by exchange, also after entering positions what if one close long leg? only option is to enable to enter and exit with two legs at a time. Broker can’t build these and only exchange should come out with these structured products.
That STUPID SEBI dont know how to make a margin system , they are trying to kill volume in the market . let them go and see USA margin system thats a country , for indian we cannot get anything favour for business , this is easy of doing business they are advertising , first we want to remove the old guys in SEBI