Hello Amatul,
Yes you can do M.Tech after your B.Tech. You can give GATE exam and qualify with Decent marks and can take admission in IITs or NITs for Higher studies.
for more details about gate exam you can visit the site:-
https://engineering.careers360.com/exams/gate
there are other entrance exams also you can give:-
SRMJEEE
BITSAT
VITEEE
to know more about more exams that can be taken you can visit the site:-
https://engineering.careers360.com/exams?level=2
Good Luck!
Integrated M.Tech good option
U can prepare for graduate aptitude test in engineering and join Masters in Indian institute of technology
U can prepare for graduate record examination and join Masters in in abroad
You can also select your field of interest in Masters and do a research, and thesis in masters
Candidates can check B.Tech Cut off for Top IITs & NITs here.
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