Last year I have buyed a micromax canvas doodle 3 from Amazon. The phone was good at cheap price but it contains many of the problems as well as disadvantages such as: -. 1) Camera quality is too low. 2) Processor is very less and phone starts hanging within some months.
3) It comes in 512mb ram as well as 1 GB RAM but at present time it is useless because phones of this range are now with something about 2-3 GB RAM.
4) Memory is too low, it gives something about 4-8 GB ROM in device and it is too less for user who uses big apps and play big games