I have not basic information about that but
I know that now gate examination is must to get
B Tech degree. And this is a one day exam in which 25 Question are from GK and GS.
Whithout qualifying gate you can't get admission in
M Tech collages.

HELLO VIKASH

Graduate Aptitude Test in Engineering (GATE) is an entrance examination for doing M.techs in IITs NITS and there are many colleges which accepts gate score
in order to do GAte examination you should first complete your engineering and give the examination as per your course and if you qualify you can do M>techs in very good colleges.
The other advantages of gate exam is you can work in PSUs LIKe BHEL,BSNL.. etc if your GAte scores are GOOD.
for more information about this exam refer this link

https://engineering.careers360.com/exams/gate
for preparation tips please visit

https://engineering.careers360.com/articles/how-to-prepare-for-gate

Graduate Aptitude Test in Engineering is an online national level examination conducted for Master of Engineering (ME), Masters in Technology (MTech) and direct PhD admissions toIITs, NITs, IIITs and IISc. There are certain eligibility criteria to appear for GATE. You can check the link below-
http://engineering.careers360.com/exams/gate
Not only for higher studies, but also PSUs recruit through GATE. Clearing GATE can be considered advantageous for engineering students who are desirous to enter PSUs. Because of this entrance exam, a lot of time is saved by candidates as they do not have to prepare separately for different exams of each company. They just need to practice for a single exam pattern.
Before start preparing for GATE, make a proper and programmatic study schedule. Then go through the whole syllabus. Usage of reference books is important. Don't leave any concept unclear. You can go through the link below for more preparation tips and to know about the best books-
http://engineering.careers360.com/articles/how-to-prepare-for-gate

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