Diploma

Yes, you are now eligible to apply for jobs.
After diploma Electronics and Communication Engineering, you can apply for following government jobs:-
-Junior Engineer, supervisor, Technician, Loco Pilots in Indian Railway.
-Airmen, Technician, Junior Engineer In Indian Airforce
-Technical Jobs In Indian Army
-Junior Engineer in State Electricity Boards
-Junior Engineer in Maritime BoardsJobs in Public sectors:-
TTA Post in BSNL
Technician Post in BHEL, SAIL, ISRO, IOCL, HPCL, NTPC, GAIL etc.
You have the opportunity to apply for jobs in Private sectors also. All the best.

Dear Ankit, look for bachelor degree programs initially after which you can think of doing a masters for better prospects. You need to decide on your own what to study, what your future plans are and where to study. Admission requirements are different from campus to campus from course to course. It is important for you to list out suitable courses and then look for eligibility and requirements.
Best Wishes

Hey. I'm sorry i do not know much about Lateral entry. You can contact the college directly.

Dear Suresh, if your bachelors degree says that it's a Btech - a 4 years US comparable degree, you may certainly apply to USA with GRE & TOEFL scores. The Ms in USA would be 1.5 to 2yrs & you may apply for the same one year prior to the intake you wish to go for. The intakes are majorly in Fall ie. sep of every year.

You may refer the link below:
http://study.com/microsoft_certification_training_programs.html

It has a scope in petrochemical industries. U can apply for jobs

Hello. The cutoff for admission to MBA programme 2016 is composite score of 35.091 for SC category candidates. The Composite Score has been computed by giving weightage of 40%, 30%, and 30% to the scores of VRC, DI/LR, and QA Sections respectively as provided by the CAT Centre for the CAT 2015 Examination for candidates who registered with FMS. For example: Composite Score = ?(Score in Section * Weightage)/Max Marks for the Section