Prerequisites:
1. Rooted Yu Yunique with custom recovery. Here’s a complete guide of rooting your YU Yunique Safely:
How to Root YU Yunique & Install TWRP Recovery.
How to Unlock Bootloader HERE -
http://thet3chlover.blogspot.in/2015/12/how-to-unlock-bootloader-on-yu-yunique.html
2. Backup all your data: Contacts, Photos, Apps & other files. (Although you will not lose other files except contacts & Apps, but its better to be on the safer side)
How to Install?
1. Download Velocity Kernel from the Link Below
Download
2. Copy it to the root of SD Card.
3. Boot into TWRP Recovery.
4. Goto Install and click on Velocity Kernel.zip file.
5. Finally Swipe to Flash it and reboot without wiping anything. :)
ENJOY!!
Notes:
1. This kernel performs best when used with ROMs based on the latest sources of CyanogenMod.
2. This kernel doesn't requires any other app except for Kernel Adiutor to control the features. Therefore, you people are free to uninstall any other Kernel-Management app. #NoHassles :D
Source Code:
https://github.com/Shoaib0597/Velocity_Kernel_for_Yu-MSM8939/tree/CM-12.1-Jalebi
Credits:
1. Google (for everything related to Android)
2. Cyanogen (for Source Code)
3. Varun Chitre (for ThunderPlug and ThunderCharge)
4. Faux123 (for IntelliDemand Governor, IntelliThermal and IntelliPlug HotPlug)
5. AluCard (for AluCard HotPlug and AluCard Governor)
6. Savoca (for kCAL Colour Control)
7. Shivam Kumar Jha (for help in fixing some errors)
8. Finally the Kernel Developer :
Shoaib05
Source:
http://forums.yuplaygod.com/threads/velocity-kernel-v3-0-for-lollipop-5-1-1-roms.32207/