Zerodha requirement of 50% cash of margin for F&O?

[portfolioplus911]

@golfdude

Is this a requirement of SEBI or the exhange ?

QUOTED: “SEBI mandates that 50% of margin has to come in cash”

Is the rule for 50% cash availability also required for selling options?

For shorting options, like futures margin is required. SEBI mandates that 50% of margin has to come in cash. So yeah, required for option selling, and yes across all brokerages.