which subject has more scope to.becoming a govt college lecture

Hello Aleena,

First choose the stream in your 12 th standard according to your interest.
In your profile you have mentioned that you are a Science Aspirant. So accordingly I'm giving information related to Best Subject for becoming Government Lecturer. You might have studied PCB or PCM so based on that I'm giving the subject names.
Best Subject for becoming Government Lecturer for PCM students.
Mathematics
Economics
Physics
Commerce
Chemistry
Humanities
Law
Arts

Engineering Subjects (if you want to do Engineering and interested subjects in your Engineering branch)
Best Subject for becoming Government Lecturer for PCB students.
Biology
Pharmacy
Zoology
Botany
Psychology

After completion of 12 th standard go for the Undergraduation degree course in which are interested.
Later do Master's degree in a subject you want to. You must also prepare and appear for National Eligibility Test (NET) which is conducted by CSIR UGC in subject related to your Post Graduation.

Hope this helps.
All The Best!!