Hello, Aspairant

I will tell you difrrence between them ,so that you could decide easily,

• Gate
• Through this exam you can take admissions in M.tech IIT colleges for master degree .

Visit the below link to get more information about gate and it's eligibility criteria.

https://engineering.careers360.com/articles/gate-eligibility-criteria

• CAT

This exam is conducted for those student who wish to take admissions in top MBA colleges of india.

Hope this will help you!

All the best

Ask if you further queries !!