Because price wise they are not much separated and Nokia X2 is priced just $20-$25 more than Lumia 530 in India. So, this comparison will come to minds of many prospective buyers looking for a quality device with “Nokia” branding.
Lumia 530 over Nokia X2:
Continuous update support, Quad-core processor, Windows Phone fluidity
Nokia X2 over Lumia 530:
Beautiful Flagship like design, 5 MP Autofocus camera with Flash, Better & bigger Display, Some Android games and apps still not available on Windows Phone
Watch our video comparison review of Lumia 530 and Nokia X2. You can catch our full video coverage of Nokia X2 and Lumia 530 by clicking here and here.