I have referred stack overflow and used "Support screens" attribute in manifest file like this:
<supports-screens android:smallScreens="false"
android:normalScreens="false"
android:largeScreens="false"
android:xlargeScreens="true"
android:requiresSmallestWidthDp="600" />
<uses-sdk
android:minSdkVersion="14"
android:targetSdkVersion="17" />
But still I am able to install it in any type of screens. Have tried in sony tipo and I could install it. Whats wrong here?