I opted for Lava iris x1atom in the low budget and purchased it and used for 3 months and am completely disappointed with it.
The phone claims to have 1.2ghz processor and 512 mb ram but the performance is not even upto the given specifications.Its lagging a lot and cant play most of the games.
Lava released thus phone with kitkat and guaranteed upgrade to lollipop but the contacts in the phone are vanishing automatically and the phone gets off automtically. All my contacts have gone I dont know what the problem is.My cousins also are facing the same problem and I regret that I referred this phone to them.