Flipkart customers order the Windows Phone 8.1 powered Xolo Q900S, receive Android model instead
The Xolo Q900S features a 4.7 inch screen, offering resolution of 720 x 1280. Running the show is a quad-core 1.2GHz Snapdragon 200 processor, with the Adreno 302 GPU on board. Back and front-facing snappers weigh in at 8MP and 2MP respectively. This dual SIM unit has 1GB of RAM and 8GB of native storage inside. A 32GB capacity microSD slot takes care of those requiring more memory, and an 1800mAh cell keeps the hamster spinning on the wheel.
Of course, if you decide that you'd rather go with the Android version, there is nothing that can stop you from keeping the model you mistakenly received.
source: Flipkart via WMPoweruser