Generally the date will be on 2nd July,2018 (as 1st July is SUNDAY). But you have written, that your exam. is over on 4th June’18. Have you received a”release order” from your college? You must join your school the next day of the “released date (mentioned )” from your college. Because, in the appointment by the SA and approval letter of the deputed (if any) candidate (s) issued by the DIS, there is mentioned the termination date of service (30/06/2018).