you can use farmaroot nice app for root unroot
only you need is to install this and wifi or data connection on.
just simple.
You can thanks me by clicking "Thanks" button.

Device-Micromax A110 Superfone Canvas2 A110
ROM- Weekly Change ROM Kernel-It depends on ROM.(Best suited for ROM used.)
swap- 1GBRAM by @saurabh0291 (Thanks @Saurabh0291)