I want to buy a mobile phone within 20 thousand. Suggest me which one is better windows or android os?

Lenovo A805e is the latest Android Smart phone that has been unveiled by the company and is also included in it's a series. This device was unveiled at the Tianyi Mobile Phone Trade Exhibition that was held at China. Lenovo is well known for making the Laptops and also made many Smartphones in the recent past but could get that reputation in the smart phone market till now as they wanted to. In the even the company also showcased the Lenovo S860 that came with 5.5 inch display.

Hi I'm using Android phones and they are good.
Here is a list of few good phones under 20K
Lenovo has launched few good phones in market and of there best phone is Lenovo Ideaphone S920
You can connect external pern drive with this phone other features are here
5.3-inch HD Capacitive Touchscreen
FM Radio
Wi-Fi Enabled
Expandable Storage Capacity of 32 GB
8 MP Primary Camera
Android v4.2 (Jelly Bean) OS
2 MP Secondary Camera
1.2 GHz Quad Core Processor
on flipkart you will get Bluetooth with is phone here is link
http://www.flipkart.com/...sks9s9gmai

Micromax Canvas 4 A210 is other phone which is good in this range
here is its specifications
5 MP Secondary Camera
13 MP Primary Camera
Wi-Fi Enabled
Android v4.2.1 (Jelly Bean) OS
Dual SIM (GSM + GSM)
Expandable Storage Capacity of 32 GB
1.2 GHz Quad Core Cortex-A7 Processor
5-inch LCD HD Capacitive Touchscreen
Full HD Recording
you will get freebies on flipkart http://www.flipkart.com/...sks9s9gmai

Here is my choice if you are planning for high end phone under 25K which has features same as S3
it is Nexus 4 I'm using this phone so I know it is good phone
4.7-inch WXGA (1280 x 768) True HD IPS Plus Display
Photo Sphere Camera
2100 mAh Sio+ Battery
Snapdragon S4 Pro 1.5 GHz Quad Core Processor (Adreno 320 GPU)
8 MP Primary Camera with LED Flash and 1.3 MP Secondary Camera
16 GB Internal Memory
Wireless Charging (Use any Qi-compatible Charger)
Android v4.2 (Jelly Bean) OS
I purchased this phone from flipkart and its price is 24799Rs with a Bluetooth free
http://www.flipkart.com/...sks9s9gmai

Android for mobiles.

Android easy download many software with google play stor

More or less, two. Are same! OS is not a matter. Spec of the mobile is important.