Diploma

If you are planning to take BA roles after MBA, then it's a good strategy to do BA diploma and certification while preparing for MBA entrance exams. You may evaluate doing IIBA or BCS BA certifications.

Dear Mayank,
As you have not mentioned your location, I will not be able to guide you properly. However, you can clink on the link below and find the colleges near to your place:
https://www.shiksha.com/banking-finance-insurance/colleges/diploma-courses-india

Diploma in mechanical engineering is a job oriented educational qualification. You can go for a job in services or manufacturing sector as a junior engineer or supervisor. If you do not have any personal constraints, you may opt for lateral entry admission in B.Tech 2nd-year. You may evaluate doing AMIE for better career prospects.

Hi, Yes you can, however, different universities would be having different admission requirements. It also depends on where you plan to study. For example, to study in the USA you must take the SAT and TOEFL.

Hi,
This has to be a decision you must take based on your interests and priorities. It is difficult to find engineering PG Diploma programmes but check the 1-year Postgraduate Diploma programme in mechanical engineering by the University of Saskatchewan and the graduate certificate in practical elements of mechanical engineering programme by Fanshawe College.

Hi Mishel,
Try in Australia and New Zealand. Chances are minimum in Canada and Germany, universities here are very competitive and more than 75% is required.