fir dated prior to the order of sp directing reg of fir

FIR dated prior to the order of SP directing Reg of FIR

The complainant approaches the SP with a written request dated 02.10.2014 requesting him to direct the Police to register an FIR against accused. In a classic example of Police efficiency, The SP gives the direction on the same day in writing! The letter giving the direction reaches the Police Station the same day! And hold your breath!! The FIR is also registered with remarkable efficiency, on 01.10.2014 i.e. a day prior to date on which the complainant even started the process!

What is the outcome or ultimate result of this FIR?

If the complaint is dated as 2.0.2014, the FIR registered one day prior to the complaint will be invalid.

Dear Kalaiselvanji

The opinion given by you is a natural outcome of any logical thinking but can u give me the legal force or any citation behind this??