Please help me. I don't know what to do next. I have completed Diploma in electrical. Should I opt for a job or go for engineering?

I would suggest you to go for engineering as just after Diploma you will not get that much of opportunity from growth point of view.

I think you should pursue lateral entry B.Tech from a reputed university because with Diploma you may not get a lot of success in life.

After successful completion of Diploma in Engineering course, students can either continue further Engineering studies by lateral entry admission in second year of B.Tech or take up entry level jbs in engineering organisation. Diploma holders gets employment as technicians, technologists, superviso

Instead of doing job, you should go for engineering. You can for B.Tech (3 years) through lateral entry. Diploma holders in any stream are eligible to take admission, in the second year of the course. They must have done their Diploma after class 10th (3 year)with minimum 50% marks or after class 12