Design beautiful game for sudoku in Android

Dear All, It is my dream and simple game project . This game is about Developing "Sudoku" . If any android developer who is interested in developing this game, they can bid it. Requirement =========== 1) UI should be rich and user friendly 2) End User can easily play the game in Any android mobile and tablet . 3) Code should be developed using android sdk 5.0 or 5.1. User can use phonegap,HTML5, CSS, jquery or etc...But code should work in any lower version of android sdk also. 4) Please quote in your bid about "How long you can give maintenance support of the game (Warranty of service) . Please mention in days . All the bug fix should be addressed within 24 hours after post production. There should not more than 3 bugs in a year. 5) Expecting in quality in delivery , commitment. 6) Please mention the exact no of days to be delivered. People who can not deliver it on-time , please do not bid it. 7) After bid , it has been delivered in poor quality, project will be rejected. 8) Developer has to sign the non-disclosure agreement (NDA) and Surrendering ownership rights to me for this project. Happy Biding :-)