Redmi 4a Fake Rom And How To Get Rid Of It?

Greetings, good people.

I bought Redmi 4a in December, and i am not getting any updates. I checked the version of the firmware and found out that MCCCNDI might mean that this is fake ROM. How do i go about flashing Custom or Official ROM now. Are there any specific things i need to do, or i can just root, flash recovery and after that custom rom?