If someone ask to you to tell best smartphone in minimum price, I say take redmi 4a blindly.
Under 6000 rupees it is a good phone with almost every thing. I am highly satisfied with the performance delivered by this phone.
Battery life is simply amazing.
Phone looks good but dont forget to use back cover because it is a little slippery.
I noticed a little bit of heating when using location service on this device.
For daily usage it is a fair device with around 24-30 hours of battery backup.