Dear Sharma,
Tachnically, it is possible for any body to rejoin the same company. He may join at the same position /higher position /same department or different department with same condition of employment or with different conditions of employment (such as, on part time /retainer /consultant etc.basis). However, I feel, your query can best be answered if you let us know the following :
1. What was his reason for leaving the job ? Did he resign on his own or was he asked to resign ?
2. Has he been properly relieved and full and final amount credited to his bank account ?
3. After how many days of gap, this rejoining process is happening ?
4. What is the reason for him to rejoin or your Management to consider his rejoining?
5. Did he work some where after leaving your concern ?
6. Has he withdrawn or transferred his PF account to his earlier company where he was employed immedialtely before rejoining your concern ?
7. Has he requested (in writing) your Management for giving him an opportunity for reemployment in your concern ?
Look forward to hearing from you.
Rgds,
Rakesh Pd Srivastav