hi gitanjali bharti,

you can get all the previous question papers and their answer key from below link:

• http://gate.iitm.ac.in/Previousqp

to get answerkey click pre Exam tab >> previous answer keys.

all the best!

related articles:

• https://engineering.careers360.com/articles/gate-question-papers

note:if any links available,copy and paste it in the url bar of your browser.

I Hope this information will be useful to you.

if you need additional information,let us know to help you.

Thank you!!!:)