Hello, the gate exam for 2019 is completed, so inorder to apply you need to wait for notification for gate 2020 when the notification comes you need to register Goaps site and then you need to provide required documents and signature for the application. The total marks is 100 and of which 15 marks are aptitude and rest is technical. Syllabus varies from branch to branch but commonly we have aptitude and engineering mathematics.

For detailed syllabus refer 

https://engineering.careers360.com/articles/gate-syllabus/amp

Hi Surya! Careers360 has all the information related to GATE2019 . The link of the article for the same is given below. Kindly visit 

https://engineering.careers360.com/articles/gate-application-form

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