Hi mudassir9999,
I have an idea how you can solve this. All you need is a Bandpass Filter. I prefer an active bandpass filter, but that is up to you. This link shows you how to create an bandpassfilter.
I have done some calcs on the first circuit on that page and these are my results:
R1 = 31.831 kOhm
C1 = 100 nF
R2 = 26.526 kOhm
C2 = 100 nF
R3 and R4 are not necessery because you dont need to have some gain.
So connect the inverting pin of the op amp to the output.
Hopefully this will help you.