after completion of your b.tech , you can apply for ajob in idfferent core companies like ,

~ bsnl
~ iocl
~ isro
~ drdo
~ ongc
~ sail
~ gail
~ mtnl
~ ntpc
~ transco
~ zenco , etc.

you can also apply for apost in ,



~~ banking sector
~~ police department
~~ indian army
~~ indian navy
~~ airforce , etc. .

for technical jobs in core companies , you should have 65% in b.tech

for other department jobs , you should have 55% in b.tech