The Nokia-Microsoft partnership has raised several doubts for both companies. Windows Phone's success is critical to both companies and promoting the product has a lot to do with it's success and failure. During my trip to North India and even around Mumbai, Nokia India is ensuring that people know about their Lumia phones. Distributor outlets in small towns to outlets in big cities are covered with their Metro-themed wallpapers. Big billboards at strategic corners in Mumbai are promoting the Lumia phones.
Mobile enthusiast blog ZOMGItsCJ reported sometime back that Nokia India is partnering with Jet Airways to cover their airplanes with the same Metro-themed artwork. Honestly, it doesn't make sense to me that you'd paint the outside of an airplane. Let's face it, air traffic is not like India's bumper-to-bumper road traffic. The plane flies high enough for no one on ground to see what's painted on the outside and no one in the plane really knows what's painted outside. If Nokia India painted cabs and 3-wheeler rickshaws with the Lumia brand—that'd make more sense since there are more people stuck in traffic and looking out for vacant cabs than there are those who're looking at the artwork on an airplane.
Having said that, I still appreciate Nokia India's unique efforts. An image of the Jet Airways airplane covered in Metro tiles courtesy ZOMGItsCJ: