I\'ve gone through the page Using Hardware Devices. My manifest has
2 steps to follow
Enable USB debugging mode in your android phone. settings > Applications > development > enable the "USB debugging" check box
Enable manual deployment target on eclipse. Right Click on project > Run As > run configurations > select the "Target" tab > select the "Deployment Target Selection Mode" as ""manual""
Now run your application normally and you will be asked to choose the device you wanna run.
Then you can simply select the device you wish to run (Using serial number of the phone, if there are many devices running at the same time).