Following could be the reasons:
1. In case your appointment date is prior to 1 st July, 2007, Form DIN-3 in respect of your appointment is not filed / approved.
2. In case your appointment date is on or after 1 st July, 2007, form 32 for your appointment is not filed / approved.
3. Subsequent to filing of form DIN-3/ 32, as the case may be, form 32 is filed for cessation of your appointment.