Here are some of the smartphones under 15000 Rs budget.
OPPO A57
This phone is good for those who are into selfies and images. As the quality of camera is good, you'd find that the phone has lot to offer. For selfie the camera is 16MP camera and 13MP primary camera. So the quality of images is really good. It has 5.2 inch display screen. The device has Android 6.0 installed on it. With 3GB RAM and 32GB space, it can be really good as a regular phone.
The price is 14890 Rs on Amazon.
You can get it here: http://www.amazon.in/Oppo-A57-OPPO-Gold-32GB/dp/B01N7XIKB5/
Gionee S6s
S6s is one of the popular phones right now for those who are looking for better camera and battery performance. For price range from 10k to 15k this is a good phone to check out. It has 13MP primary camera and 8MP secondary camera. The device has 5.5 inch display screen with 1080 x 1920 pixels resolution. It has 3GB RAM with 32GB internal memory. It has Android v6 installed and has pretty much decent battery performance.
The price of device is 14,400 on Amazon. You can get it here: http://www.amazon.in/Gionee-S6s-Latte-Gold/dp/B01K221586/
Asus Zenfone Selfie ZD551KL-6J510IN
This is another good phone for budget under 15K. It has decent camera with 13MP lens and has secondary camera lens of 13MP too. It has 5.5 inch capacitive touch display.On the OS side however it is still on Android V5. So that's something to get put off with. but if you know how to upgrade, then you can do so. It is dual SIM device with 3000mAH lithium-polymer battery. It also has 3GB RAM with 16GB internal memory.
The price of the device is : 12,970 Rs on Amazon.
You can get it here: http://www.amazon.in/Asus-Zenfone-Selfie-ZD551KL-6J510IN-Silver/dp/B01J5LV3X2/
Coolpad Note 5
As far as performance is concerned, I'd say coolpad note 5 is worth taking into consideration. You may find that the device has very good reviews for battery performance. In terms of images, it has decent camera with 13MP primary lens and 8MP secondary lens. It is a dual SIM device with 4GB RAM and 32GB internal memory. The device has 5.5-inch display screen. The device has 4010 mAh battery with stand by time of 200 hours.
The price of the device is : 10,999Rs. on Amazon.
You can get it here : http://www.amazon.in/Coolpad-Note-Space-Grey-32/dp/B01FM7HJ3G/
Xiaomi Redmi Note 4
When it comes to image capture, I'd recommend Redmi series phones. Redmi Note 4 is definitely a good phone. It has 5.5 inch display. The device has dual SIM with 4G LTE support. The device has 13 MP and 8MP front camera. It also has the 4100mAh battery. Device seems to have three variations in - 2GB, 3GB and 4GB. The price of the device will depend accordingly.
The price of 2GB RAM device ; 9,999 Rs on mi.com website. From March 1st the sale will begin.
You can get it here : http://www.mi.com/in/note4/specs/
These are some of the devices that are worth taking a look at. You should check out some of the new devices in the Amazon India, you will find the devices sorted as per the price category.