Hello Dear Aspirant,

Graduate Aptitude Test in Engineering is a national level test and it reflects the relative performance level of the candidate. With the qualified GATE score one can get admission in higher education programmes as well as get recruited by PSU's. The paper is of 100 marks having multiple choice questions and fill the blanks. The paper also possess negative marking scheme for every wrong answer particular marks will get deducted. The syllabus for Mathematics (MA) is shared below please go through the link

Mathematics (MA) GATE-2020 Syllabus (http://gate.iitd.ac.in/Syllabus/MA.pdf)

Aptitude and English is also included in the syllabus for that you can check the previous year question papers and the link has been shared below:

GATE 2019 Mathematics Paper  (http://gate.iitd.ac.in/OldQP/2019QP_MA.pdf)
GATE 2019 Mathematics Answer Key (http://gate.iitd.ac.in/OldQP/2019Key_MA.pdf)

GATE 2018 Mathematics Paper (http://gate.iitd.ac.in/OldQP/2018QP_MA.pdf)
GATE 2018 Mathematics Answer Key (http://gate.iitd.ac.in/OldQP/2018Key_MA.pdf)

GATE 2017 Mathematics Paper (http://gate.iitd.ac.in/OldQP/2017QP_MA.pdf)
GATE 2017 Mathematics Answer Key (http://gate.iitd.ac.in/OldQP/2017Key_MA.pdf)

The previous year qualifying GATE marks for General : 25 ; OBC (NCL) : 22.5 ; SC/ST/PWD : 16.7

The Books you can refer for GATE preparation are as follows :

Higher Engineering Mathematics by B S Grewal

Advance engineering mathematics by Erwin Kreyszig

GATE Engineering Mathematics by Made Easy Publication

I hope this is helpful.

Best Wishes!