could be two things,
when registering the car the agent made a mistake and wrote the chassis number or engine number (one of them) in both the chassis and engine field.
The Engine Number and Chassis number is co-incidentally same from factory, there is no problem in that, infact if i had such car i would've increased the priced by 50k-100k as it has a unique same chassis and engine number
The Best Sensible and Practical method would be, note the chassis number from home, go down check the chassis and engine number from Tickly, embosed chassis number, and from the engine block, if its different, Screw Pak Shuzuki.
btw the chassis and engine number has a bit diff eg, Pks1300s-******, chasis and engine- ******