Since you mentioned that you have already completed class 12, the next step you can take to proceed towards a physical educator is to go for a degree in physical education for which there are common entrance tests and physical fitness tests are also conducted.

The most popular courses available for Physical education in  India are:

• Bachelor of Physical Education (B.P.Ed):

    It is a 3 or 4 years degree depending on the university or institution you join.

    Eligibility is class 12 in any stream and percentage differs from (45 to 60)%.

• Bachelor of Science in Physical Education:

              If you have completed class 12 in science stream then you can also go for this degree and the 

              duration of the course is also 3 years. Minimum percentage requirement is 50% for most    

              colleges.

• Bachelor of Arts in Physical Education:

              In this case also, eligibility is class 12 from any stream with minimum percentage from 45% to

              60% and the duration is for 3 years.

• Bachelor of  Sports Management:

  This degree also requires a minimum 50% in class 12 as eligibility and entrance tests are also conducted for getting admission.

Not only these but one can also get a certificate course of 1 year in Physical education as  some universities provide for the mentioned duration.

Some top colleges for physical education are given below:

• Lakshmibai National College of Physical Education,Thiruvananthapuram
• Bharathiar University
• Bangalore University
• Indira Gandhi Institute of Physical Education and Sports Science
• University of Delhi
• Banaras Hindu University