Hello Patnam,

To become assistant professor you have to fullfil following qualifications:

1) Complete masters degree in relevant descipline.

2) Focus on research paper publications in journals with good impact factor.

3) Qualify SET NET examination conducted by UGC.

However additional things such as,

1) Patients

2) Book publications

3) PhD

4) work experience in good organization

Increases your chances of selection.

All the Best.

Dear Nagender, the minimum educational qualification to become a Professor is atleast a Master's degree. However Ph. D is more desirable qualification in most institutions. Again each and every University or Institution has its own meaning of a Professor. In some Institutions, a Professor is a Senior Level Teacher or a Lecturer. You also need to qualify for the National Eligibility Test to be hired as an Assitant Professor first. After accumulating certain years of experience, you are promoted as a Professor. Certain Institutions also expect a Professor to have research experience in the field of their subject.