Both Nokia Lumia 630 & Nokia XL cost 10K rs/$170, but these two are from different worlds. Lumia 630 is a Windows Phone 8.1 device whereas Nokia XL is an Android 4.1 phone with Nokia X platform skin. They have lots of differences is dimensions, ports, hardware & software features though the home screen looks quite similar due to the Windows Phone like tiles on the Nokia XL.
In this details comparison, I have shown you how many ways these two phones are completely different from others. Hope this will clear all of your dilemma.
Lumia 630 sports 4.5" IPS LCD with 480x854px resolution @218ppi & ClearBlack technology, 8GB storage, 512MB RAM, Quad-core 1.2 GHz Cortex-A7 processor with Qualcomm Snapdragon 400 chipset, Adreno 305 GPU, 5MP AF camera with 720p recording, 1830 mAh battery
Nokia XL features a 5" IPS LCD display with 480x800px resolution @187ppi, 4GB storage, 768MB RAM, Dual-core 1 GHz Cortex-A5 processor with Qualcomm MSM8225 Snapdragon S4 Play chipset, Adreno 203 GPU, 5MP AF camera with 480p recording, 2MP front camera, 2000mAh battery
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