I don't understand why do you want for free. Don't you think that the professors or the teachers also need money to run their family or they also need money for daily uses. It is better you should have asked for a nominal rate course rather than free.

If you are from Electrical Engineering or Mechanical background then i would suggest GATE Academy or Xerique Education. You can also watch their you tube videos if you don't want to spend a penny on any of their premium courses.

All the best!!

Hi Dear,

If you want to learn for GATE exams free of cost then I'll recommend you to refer to free Youtube Videos to study topic wise for GATE exam preparation. Also you can refer to Unacademy free resources for few topics. And for mocks there are few demo mock test available online on different sites which you can attempt and find by doing a google search.

Also for free GATE mocks refer the link provided below:

https://engineering.careers360.com/articles/gate-mock-test#Previous-Years-GATE-Mock-Test

Good Luck