Zerodha provides leverage or margin only when you place intraday orders (MIS or CO) based on the prescribed peak margin requirements by SEBI. No additional margins are provided beyond these regulatory limits.
You can check current intraday leverages at zerodha.com/marketintel/bulletin/249809/latest-intraday-leverages-mis-bo-co.
Regulatory restrictions
As stated in SEBI's circular, providing additional margins based on account balance through an NBFC and charging interest on borrowed margin is a severe regulation violation. Brokers are not allowed to engage in this practice.