It depends on what type of job you're looking for. Unless the company/ad specifically asks for your CGPA, I think it's best not to put it out on your resume.

I mean, sometimes, some company don't emphasize on CGPAs but since you show yours out, you kind of give them a chance to skip over you. For example, if you don't have any working experience, you don't put down "No working experience". Surely if a potential employer sees that, they'll skip over you.

Just wait until they call you up for an interview and only tell them when asked. Some things you don't have to tell the interviewers, and it won't hurt to tell a little white lie. But don't bluff until overboard la, of course.