You have already completed your m.a and Pursuing b.ed you can do PHD program in related field means you can choose either of the subject it may be education or arts.for phd program you need to complete your masters degree or bachelor's degree in education with 55 percent marks.you can choose between different PHD

1. Phd in education
2. Phd in educational psychology
3. Phd in curriculum and instruction
4. Phd in educational leadership and management

To pursue phd you need to clear net exam meet the specific requirements may vary depending on university in which you want to take admission.

Yes, you can definitely give the NET entrance exam even after completing your MA and during your B.Ed course. The eligibility criteria for NET generally require a Master's degree, and completing your B.Ed will not disqualify you.

If you qualify for the NET exam, you can pursue a Ph.D. after completing your B.Ed course. Many universities and institutions consider NET qualification as a significant criterion for Ph.D. admission. However, the specific requirements may vary depending on the university or institution.

Here are some additional points to keep in mind:

• Check the specific eligibility criteria: Ensure that your B.Ed course is recognized by the NET conducting body.
• Consider the time commitment: Pursuing a Ph.D. while working as a teacher can be demanding. Evaluate your ability to balance both commitments.
• Research universities and programs: Look for universities and Ph.D. programs that align with your research interests and have a good reputation.
  
  I hope this information helps.