Thumbs up [Q] How to enter recovery mode in Xperia P

I have a stock Jelly Bean 4.1.2 installed on my xperia P handset. I wanted to install the custom rom CM 11 on my xperia. So I first rooted my handset using Doomlord Easy rooting toolkit. Then I copy pasted the custom Roms zip file in the internal storage. Then in order to install the custom rom I need to boot into the recovery mode of xperia P.
So I first tried using Quick Boot but it goes on rebooting to the regular jelly bean OS and doesn't enter the recovery mode.
Could anyone guide me which step I actually missed for installing the custom rom. If a perfect guide is provided I would be very grateful.