Hyundai Motor India — Grand i10 manufacturing date

My name is Geethu Manoj. I am trying to find the correct month & year of manufacturing for the Hyundai Grand i10 Sportz that I purchased in December 2015.
Details are as follows:
Model: Grand i10 Sportz 1.2 BSIV
Chassis no: MALA851CLFM384893
Engine no: G4LAFM87720
Registration no: MH04 HF239
From: Mithila Cars PVT LTD, Unit no 3, 4 Hatkesh Industrial Estate, Mira Bhayander Road, Mira rd E (which is currently shut down)

While purchasing the car in 2015 I was told this is a newly manufactured car. This was registered in my name on 5th january 2016. However, when the registration documents came, the manufacturing year of the car was mentioned as 2012.

Kindly let me know how to resolve this issue as I am facing problems in selling this car.