Diploma

Various courses available to you after completing Diploma in Mechanical Engineering:
1) BE / B.Tech in Mechanical Engineering after Diploma
2) B.Tech in Electronics or Electrical (ECE or EEE)
3) B.A. (Bachelor or Arts)
4) B.Com (Bachelor of Commerce)
5) B.Sc. (Bachelor of Science)
6) Designing
7) Java

If you can manage your time then yes, you can do Diploma in fashion designing because as per the UGC rule you cannot do two graduation courses at the same time but as it’s a Diploma course so it can also have its classes in the afternoon.

There is no personal interview for Diploma courses.

To become a commercial pilot, there is a specific eligibility criteria which you should first be aware of. This is decided on what subjects have you taken in class 12th. It requires PCM to be a pilot. And, even if you have not opted for the same, then you can appear separately for these subjects and

as you know diploma in criminology is a pro diplomat course and any pro courses are not subject of distance mode of education

The minimum qualification to start CPL training is just 10+2 with PCM. Hence if you have completed Diploma course after class 12th then you may enroll for CPL. Your Diploma shall be additional qualification for you, although it might be of no use in this course.

Apply for the list of colleges that match your skills. You have a number of colleges available these days and you will definitely get admission into your preferred college.

Yes, you can apply for APTET.