If I do MA from LS then can I apply for the job of assistant professor after that.

Yes, after doing an MA from Langat Singh College, Muzaffarpur, you can apply for assistant professor jobs but just having an MA is not enough. You’ll also need to clear exams like UGC-NET, SET, or SLET, which are required for teaching jobs in colleges.

Earlier, a PhD was compulsory, but now it’s optional. If you clear NET or a similar exam, you can apply even without a PhD. And if you do a PhD, you can also apply without clearing NET.