Revision of 156(3) when police already enquired and lower court rejected the 156(3)

Sir a person file complaint against me to ssp u.sec 420.
The ssp forwarded complaint to Co police for enquiry and Co police submitted that it is civil mattar.
The complainant move application under 156(3) in jm court hiding the police enqiry, it was also rejected by judicial magistrate that its civil case.
Now he filed revision in district judge. 
Is this revision maintainable as police already made enquiry.