Xiaomi Redmi 3S prime is the best smartphone to buy under 10k.Why should you buy it?
Because of-
1.Its looks with 5.5inch screen
2.Its speed with 3gb Ram
3.Its memory 32gb rom with 64 gb external sd card slot
4.High quality camera with 13mp rear and 5mp front
5.Fast unlocking with fingerprint sensor
These features makes it the best smartphone under 10k.
But this smartphone have a minor issue with its microphone, as this handset have two microphone, 1 at the top, 2 at the bottom.So, while recording the voice the microphones keep splitting with each other so the audio comes horrible, but this smartphone records a decent quality audio with the earphone.So if you already have or can buy a professional microphone then you can record studio quality audio as well.
But I dont think this is a bad deal under 10k, as its camera is awesome, and its other features too.
So you can go for it.
I can say that because I already own a Xiaomi Redmi 3s prime.