I recently opened Angel Broking account, and I was able to buy shares worth almost 6k with 2k RS. (3X Margin).
But In Zerodha, I can only buy 2K worth of shares with 2k. In fact, while doing BTST trade, 20% is also blocked as per regulations.
It would be great, If there is a way Zerodha provides at least 1.2-1.5x times margin overnight. I dont think there is any risk in providing upto 1.2 to 1.5 times margin. A stock cannot go down 100% in one day.