I bought this phone for my dad, hi wasnt know anything about smartphones now hi is very good smartphone user.
Redmi 4A is a nice phone in budget its only 6000 INR.
4A has 5 inch hd display, snapdragon 425 quad core processor, 2 GB ram, 13mp rear camera and 5mp front camera, 16gb internal storage, dual sim or single sim with memory slot, 3030 mah battery, it comes with 3 colors gold, rose gold, dark gray.
This is a very good specification in 6000rs and as I see that its working properly not any problem not hanging or battery drain early or not any network issues, Camara quality also very nice, also good for gaming I was running in asfalt 8 and its working fine.
I will recommend you if you have 5k to 7k budget