Why is my mobile canvas p480 isn't update in to lollypop 5.0

[AC Question]

I hade micromax canvas p480 tablet it said that it can update in to lollypop 5.0 but it is not updating anf shows thatno update avilable why?

 

[B. Diddy]

Welcome to Android Central! Where did you see that there is an official Lollipop update? Your carrier? Micromax?

After a quick Google search, I can only find posts describing custom Lollipop ROMs, which would require rooting the tablet.