RESOURCES
Below are some extremely useful portals for Gate Preparation. Make best use of it.
[Useful Study Material for Gate]
[Detailed Web-notes Index for all Topics - Hands Down the best free online resource]
[Quality Discussion Forum / PYQs]
[Works best on Laptop, Go to Brilliant and Scroll Down for amazing community wiki on various topics]
Brilliant is a community driven wiki which is free. However 'courses' are created by MIT / Standford Alumni which requires subscription. If you can afford, you may purchase it, its worth the money. It helps to increase your IQ Level.
[Excellent list compiled by Balaji Jegan on Gate Overflow]