Hello Dileep,

I am sharing some good resource material with you.

http://gateacenotes.blogspot.com/2016/04/ace-academy-notes.html

http://gateacenotes.blogspot.com/2016/10/gate-mechanical-ace-academy-notes.html

http://gateacenotes.blogspot.com/2017/03/gate-cs-it-ace-academy-handwritten-notes-study-material-pdf.html

http://gateacenotes.blogspot.com/2017/03/gate-previous-year-question-papers-for-electronics-communication-ece.html

http://gateacenotes.blogspot.com/2017/03/prepare-gate-exam-in-one-month.html

These would definitely help you out.

Just go through it.

Regards

Tanushree Seth