Diploma

No, for pursuing a PG course, you must have an undergraduate degree.

You will have to check with the institute, and if they consider a Diploma equivalent to class 12th, then they might admit you for visual communication course.

You can take admissions in PEC after 12th on the basis of merit list of JEE Mains.
I don't think there are intake after Diploma.
But you can still check the site - www.pec.ac.in.

Hi,
Interested candidates can apply directly to the college. For exact dates do contact the college.

No, because if you apply in government sector, you are required with a qualification well approved and recognized and you also know that the private institution Diploma is not valid everywhere. As NIELIT is run by the government itself, thus there is no question of comparing the two Diplomas.

Hi Abhishek, this is not a good profile for Canada. Also, it is late for 2018. You can retry with a stronger SOP and LORs and timely submission of application. Get in touch with the college representatives for admission information, write to the colleges.