@A. Rajput This is not a question for me but I couldn't stop myself replying. Minus balance in Savings account and that too 1,86,000 is very surprising. If there is no sufficient balance in account, the amount can't be blocked. Amount is blocked when there is balance of that required amount is available.
You need to go to Bank for the resolution of this problem. You are also saying that amount still not debited, means shares have been allotted to you. You have not mentioned about allotment also.
Hope this will help you.