The xiaomi redmi 2 prime is a very good phone in such a low priced piece. It is very portable and is easy to use due to its optimum screen size.
It has 2GB ram quad core 1.2GHz processor which enables it to be lag free mobile.
8mp rear camera is good
It come with 4.4.4 kitkat built in.
Internal memory is 16gb and is expandable to 32gb
Its market price is about 7000/- which is extremely affordable with such an amazing features.
Do buy it.