Conversion from MTF to Delivery

I bought 2 shares of SBI at ₹ 780 with 4x margin, so I paid ₹ 390 for 2 shares worth of ₹ 1560. I tried to convert my MTF positions to delivery but it shows ₹ 1203 as required margin to convert.
I want to understand this more clearly. I already paid ₹ 390 and now I’m supposed to pay ₹ 1203, totally ₹ 1593. Am I actually converting my positions at CMP or the price I bought? Or am I paying extra for something else?

Hi @Vignesh_Venkatesan , request you to help us with your registered details via DM or you may drop us an email on help@dhan.co so we can review this from our end.