Here in this article you will learn the best and easy method to Install Clockworkmod recovery on your Android smartphone.
1. Download correct Clockworkmod .IMG for your device from here
2. Place it at the root of your sdcard and rename it droidrel.IMG
3. Download and install terminal emulator from the Play store
4. Run the terminal emulator and type: su (press enter)
5. Then type: flash_image recovery /sdcard/droidrel.img (press enter)