Is it a good choice to pursue B.Tech after completing class 12th?

It's up to you because it's a competitive world. You won't get jobs if you aren't better than others! Already, many engineers are there. You will have to be the best. You can opt for engineering. Good luck.

It is a sad commentary on Indian Education System when researchers say that 95% fresh Engineering grads are unfit for job. But this is true for other streams of education also. If you do B.Tech from top 50 Engineering colleges, you will get quality education and will not only get job in campus place