Hello Aspirant ,

Regardless of post graduate or undergraduate , a few certifications are extremely useful in your professional career and your CV. I'm not sure what course you're pursuing right now , but I am listing out some very popular on demand skills companies and institutes look for -

Courses in Digital Marketing , Business Analytics on Coursera , Udemy are useful and highly in demand. Learning a computer language such as Python , Javascript is needed if you're in IT or Finance fields.Basics and advanced usage of MS Excel as it is vital in every organization. Learning a foreign language through diploma or online degree could be useful.Google certifications of your interest.

All these impress the recruiters while looking at your resume and could be extremely helpful for you professionally, Hope this helped you!