Engineering

There is no college in West Bengal named HITS. The HITSEE is an entrance exam scheduled by Hindusthan University. HITSEEE (Hindustan Institute of Technology and Science Engineering Entrance Exam).

With this marks and seeing the trends of last year cutoffs of JEE Mains, I affirm you can get government college in Odisha, West Bengal and Punjab University UIET. Rest depends on the cutoffs of the institute.

Best books to prepare for JEE Mains are:
IIT JER Physics
Problems in Physics.

Well, it depends on the branch you have your majors in. If you are from a chemical background, surely you will. If not, some skills are required and some basic knowledge as well. After that, you can start interviewing with such chemical industries. Some internships may help you for this.

For that, you have to enroll yourself in any engineering college and then have to clear all the subjects every semester, in order to get a degree of engineering.

There is not much difference between BE and B.Tech. More preference is given to technical curriculum in B.Tech, rest is same. You can go for any government job, if you have completed your class 12th with PCM. Technical like junior engineer assistant engineer plus non-technical job like Bank PO SSC C

You can prepare for civil services via coaching classes or online classes. On the other hand, you can do it by yourself using different books available in the market for preparation of SSC. You should do your graduation simultaneously along with your preparations.

Yes, you can get it.