Default Easiest way to install Custom ROMs on Canvas 2

Your phone must be rooted.
You should install a custom recovery image like CWM or TWRP.
You install Rom manager from play store.
Download any compatible custom ROM.
Now place the custom ROM in your external SD card
open Rom manager
click install ROM from SD card
choose the downloaded ROM
if it has an update patch, choose it also but it should be in sequence... the main ROM first on top and then the update and other patches.
click on backup rom and wipe data and cache.
and finally select reboot and install.
and the custom ROM should get installed.
it's preferred that you backup your rom first and then install.
Battery should be at 95.