Explain pledging Please

I'm aware of whats pledging, But i kind of have a confusion. I had 4.98 lakh balance in my Upstox account. I pledged my SBIN shares and got 1.35 Lakh. At the same day I bought 1.29 lakh worth of Options and 1.18 lakh of stocks. At the day my balance showed as 3.8 Lakh remaining of my own money(4.98-1.18 for stock). and 6000 left of my pledged since I used 1.29 of 1.35 for options. But now after a day in my account the balance shows only 2.5 Lakh, and the margin money is back to 1.35 lakh. It seems all the trades I took (Options+stock) was taken from my own account