I bought the Lenovo K6 Power and It has been a month now. I am going to give you a review on the same based on my usage.This is a great phone under 10k and one must go for it. Though some of the pros and cons are as follows-
Pros:
Good design
Fast fingerprint sensor
Nice touch sensor
Long battery life
Fast net browsing
Cons:
Slow charging
Sometimes back key does not work
Heat up while charging
One cannot use 2 slim slot if one wants to use a memory card