Diploma

Refer the following:
https://www.google.com/amp/s/www.shiksha.com/engineering/course/amp/advance-diploma-in-industrial-safety-government-polytechnic-bandra-east-Mumbai-287422

https://www.shiksha.com/b-tech/course/b-tech-in-mechanical-engineering-shanmugha-arts-science-technology-and-research-academy-thanjavur-175943. Please go through the link I have shared above to get admission information and also admission procedure.
Good luck.

Industry job:
This is a good option but many consider it to be a difficult to find one. The common industries one can try for are like pharmaceutical, biotechnology, agriculture, food, dairy like industries. If one can have a contact or try through some consultancy they will be able to get a call for

Yes, you can get admission but in order to get admission in College of Engineering Pune (COEP) direct in 2nd year of B.Tech/BE course, you have to appear in lateral entry examinations like LEET/ECET/JELET after completing your Diploma from any recognised board.
You must have 60% of marks in your Dipl

You can consider following courses:
Diplomas Business Studies
Diplomas Technology Studies
Diplomas Technology
Diplomas Management
Diplomas Management Studies
Diplomas Economics
Diplomas Economic Studies
Diplomas Computer Science
Diplomas Administration
Diplomas Administration Studies
Diplomas Education
Diplomas

Eligibility:
The candidate passed 10th standard or equivalent examination with minimum of 35% marks from recognised board.
Duration:
3 years
Study mode:
Full time
Approved intake:
60
Course level:
Diploma
Course Fee:
0.325 lakhs
Approval:
(AICTE) All India Council of Technical Education

Your question is not clear!
Well, if you are worried that you won't get any engineering college with your class 12 result then I must say you are mistaken. Almost all engineering college take admission through entrance examination (either JEE main or state engineering entrance examination or their o