FnO margin change

Is there any change in margin requirements in FnO because today at market open my free cash available increased to more then one lakh from 10 thousand of yesterday while after utilising that free margin now I see that my account balance got negative.
Is this Any issue from Zerodha’s end.

A post was merged into an existing topic: There is a change in F&O Margin Policy again? Can somebody explain how this will affect us?