Electrical and Electronics Engineering

There are plenty of career opportunities after passing Diploma in any branch. However, in the meantime and also with your job, doing AMIE is a better option.
About AMIE: http://www.amiestudycircle.com/about-amie.html
Admission in AMIE: http://www.amiestudycircle.com/amie-prospectus-admission.html

Qualification
12th
Additional Details
Mandatory Subjects : Mathematics, Physics
Candidate must have secured at least 55% aggregate marks in mandatory subject along with any one of Chemistry/ Biology/Computer Science
Admissions
Admission is through counseling based on the rank obtained in Uttar Pradesh State Entrance Examination (UPSEE).
10% seats are filled through institute based on rank obtained in JEE Mains.
15% seats are filled through management quota based on marks obtained in 10+2.

Hello Navya,Manipal indeed offers lateral entry for diploma holders. I am attaching a link that will give you all the required information.
https://manipal.edu/mit/programs/program-list/btech/btech-lateral-entry.html

Hi Harika,
Yes, chances are good but check the IELTS score requirement with the university. They may ask for a retake or give you a pathway program in English. Please check with them.Your internship, projects, publications, LORs, SOP etc will also be considered during admissions.