What do you mean by you took a loan "against your fixed deposit?" Do you mean that you used your FD as security for the loan, meaning if you fail to repay the loan the bank will take the money in your FD to repay the loan instead?
If that is the case, then your FD is no longer unencumbered, and therefore it no longer qualifies as settlement funds. If the VO asks you for updated information, or if you attempt to land after getting a visa, you will not be able to use that FD to demonstrate settlement funds. Hopefully, you have some other liquid and unencumbered funds you can use as settlement funds (other FDs, cash, stocks or bonds or mutual funds, etc). If not I suggest you repay the loan by the time your VO begins asking you for updated information.