Dear Nikita

GATE has some topics which coincides with college syllabus but of higher level 

The syllabus has some common topic such as general aptitute which is same for all branches and other topics are different for different stream which you can refer from the link given bellow

https://engineering.careers360.com/exams/gate

Hope this will be helpful for you

best of luck for your exam 

feel free to ask any more query