Diploma

Consider courses like civil engg., architecture or interior designing to become designer.
MOM needs B.Com 2nd and 3rd year students to become an accountant.

After passing Diploma, the only option to enhance education is by doing AMIE (for working aspirants engaged in engineering field).
Follow this link:
http://www.amiestudycircle.com/Admission-in-AMIE.html

After passing Diploma, the only option to enhance education is by doing AMIE.
Follow this link:
http://www.amiestudycircle.com/Admission-in-AMIE.html

Diploma in Business Management/Administration - this one could be your choice of studies.

Hello Nikhil,
Firstly, congratulations for at least thinking of doing graduation after completing your Diploma. Yes, you can definitely seek admission for graduation via what is called as lateral entry. Now, each state has its own methods. Some give admission based on marks obtained in Diploma while others give admission based on an entrance test. This information will be available on the website of DTE of Tech Edu of your state.