I found kryptonsoft is the company in india having best outsourcing development centre. My experience with them was very good. They have expertise in almost every mobile application development platform. I developed with them my iPhone app, and then i asked them to port it to BlackBerry, Windows Mobile, Android and iPad. They really are best than best.

Source(s):

http://www.kryptonsoft.com

http://www.kryptonsoft.com/outsourcing/mobile-development-india

http://www.kryptonsoft.com/outsourcing/iphone-application-development-india

http://www.kryptonsoft.com/outsourcing/windows-mobile-development-india

http://www.kryptonsoft.com/outsourcing/blackberry-development-india