HELLO AASIF BASHIR..
I guess this problem you had faced previously too.. And now i see the snapshots of the signals after three components you had mentioned..
To some extent i think ATUL Sharma maybe right in saying that this problem is related to the disturbance in your system due which your signal is getting attenuated to this very level and as a result of which you are not getting the required bits… he maybe right here..you should try using a higher order filter like of the order of 5 or so and check for the results again. I hope that may work.
Thanks & regards