Motorola moto g4 plus is the best mobile under 15k I am using the same mobile it is slim and wieghtless mobile performance is excellent. This mobiles comes with pure Android OS with out any modification. Come to the features
16 MP camera with laser auto focus and PDAF
Get up to 6hrs of power in15mi
Finger print scanner is very quick unlock
Octa core processor and 4g speed
About storage 2gb/3gb Ram 16gb/32gb internal memory. I am suggesting to buy who are intrested on brand mobiles. It is made in india mobile.