Hello friends myself Puneet today I am giving you some useful tips for buying a better smartphone
First in the 10k segment you should have to go for xiomi redmi 3s prime
For 15k segment you should go for redmi note 4
4 gb ram and 64Gb rom its best in this segment
Under 20k lenovo zuke z2 is best
Under 30k you go for oneplus 3T
And if you want a flagship phone then you can go for samsung galaxy s8
Thanks
Hope its useful for you