Each link for application submitted for corresponding IIT or IISC
http://gate.iitm.ac.in/
http://www.iitb.ac.in/~pge/
http://gate.iitd.ac.in/GATE/
http://www.iitk.ac.in/gate/
http://gate.iisc.ernet.in/
http://gate.iitr.ernet.in/
http://gate.iitkgp.ac.in/
http://gate.iitg.ernet.in/