@ajoy; I don’t think a secondary teacher can be deputed for M.Ed course.
You have to go for With out pay leave for the course if you wish to go for regular course and you are supposed not to get any salary benefit…
How ever please wait for more discussion.
It is said a teacher must be provided deputation for the teaching ability enhancement ,so M.Ed, or Phd must be on deputation . But practically no authority allow /permit for it. Previously It was a matter of permission from the D.I for admission to those degrees. Now after opening of OPEN system no permission is necessary . we can have it in open mode if possible.