Hey Rocky

Coaching provide online content and resources for preparation of GATE. They will provide you online lectures and test series for your prep as well as study material/books may also be provided, if you opt for. List of some high rated online coaching is:

• Made Easy
• Ace
• Gate Forum
• Gate Academy
• Career Launcher

To know more, you can visit their website. And to know more about GATE 2021, follow the link; GATE 2021

All the best