Distance/Correspondence

After completing Diploma in Mechanical Engineering programme, one may go for Bachelors Degree (B.E./B.Tech.) in Mechanical Engineering. In most Degree Engineering colleges, certain percentages of seats are reserved for Diploma certificate holders. This entry is known as the lateral entry. Diploma holders with good grade may make use of lateral entry and join B.E./B.Tech. Mechanical Engineering programs 2nd academic year (directly).
After that, one may go for Masters education or PG Diploma programs. M.E./M.Tech. programs and PG Diploma courses will enable one to specialize in disciplines within the field of Mechanical Engineering. Some such areas of specialisation are-
Automobile Engineering
Power Engineering
Production Engineering
Industrial Engineering
Aeronautical Engineering
Marine Engineering
Robotics
Biomechanics
Piping Engineering
CADD
Mechatronics
Fluid Mechanics
Thermodynamics

Bachelor Degree in mass comm. From distance learning is offered by numberless institutions and universities all over India and even abroad. There are online certifications as well. We need to give it a balanced view rather than simply rejecting one or approving.
Distance education is meant to substitute the absence of regular education of any Degree when the learner is, for all valid reasons, unable to pursue regular studies. Secondly, distance education is a better option when one already has skills to work with along with some experience as well.
Going by the description shared above, this is suggested that a distance learning degree in mass media (as well as any skill based and skill oriented course/subject) shall be avoided as much as possible.
This is also to be accepted that distance education has more failures in its credit in India. Just a couple of days back, Haryana Government terminated the services of those who did a technical degree through distance mode. It was as per Supreme Court ruling.
I wish to suggest that if possible, do this course as a regular student and from a good institution.

If you have good communication skills and love to interact with different people, public relations is a great career option. In order to pursue a career in public relations, you can either pursue a Bachelor's or Master's degree in mass communication, or you can take up a specialised Diploma course in public relations and Corporate Communication. The syllabus of the PR course is quite comprehensive and can not be pursued through distance learning mode. One needs to develop certain skill-set to be a successful PR professional that can not be earned through correspondence. Hence, I would not suggest you to pursue a course in Public Relation and Corporate communication through distance learning. You can rather pursue the course from some of the top colleges Xavier Institute of Communication, Indian Institute of Mass Communication, YMCA Institute for Media Studies & Information Technology.