hello mausam,

btech bed and mtech bed both are eligible for the job of a teacher but infact the more opportunity and job offers goes to the mtech bed graduates because of their qualification. you can think of a situation where some of them with the respective  qualification you have mentioned above goes for an interview for a the job of a teacher and whom do you think the recruiters prefer in priority, in fact they prefer them who are having the higher qualification. if doesnt mean the other wont get a chance , they do but only after they fill the higher qraduates. there are also opportunities where they prefer the former one.

hope this information was useful to  you

all the best

Any graduate can teach in primary or primary schools.

as BTech and mtech are graduate and postgraduate degrees you can teach in pre primary or primary.

Now for teaching in secondary or Higher secondary you should have honours in a subject.

Obviously B.tech and M.tech guys can teach theri field .

For teaching in college you should have a master's degree and a PhD degree sometimes.