I bought micromax canvas p480 tablet from Amazon. It is good but the only problem is that battery life is worst. When I bought it it is written on the box as anniversary edition and os is given as lollipop 5.0, I felt very happy for this. Because all the tabs of this model are kitkat and when I taken my tab to the service Centre in my city they downgraded to kit Kat 4.4.2. When I asked them about it they are helpless & #128547; . This is the worst experience in service center of micromax. They must tell me that it will be downgraded without telling anything they downgraded my os version. This is Worst service.