Huge Margin difference in Opstra and Actual Zerodha Margin Used

Hello Sir,

I use Opstra to track my F&O positions. Earlier the difference between opstra margin calculation and actual margin used by Zerodha would be 10-15% ,

But recently Zerodha is blocking much more margin. Acc to Opstra, Margin for my current open positions should be around 3.6 Lakhs but in Zerodha, actual margin used is more than 5 lakhs. Why , there is now such a big difference

No changes from our end, maybe if you can give exact positions I can able to update you.