Dear Fr. Xavier,
PF Commissioner or any other Govt. Body cannot detect terms whether to reemploy any workman / employee or not and duration of reemployment. It is employer's prerogative, when and whether to reemploy or not. No body can interfere. Moreover, it is employee's wish and money. He/she is the sole authority and can take any independent decision. if unemployed, Govt. is not going to feed him or his family.
PF rule is if the Member is unemployed for more than 60 days, than only he / she can apply for withdrawal of PF accumulations in form no. 19 & 10 C. If he or she reemployed within a period of 60 days than he / she will have to continue PF membership with same existing PF A/c. no.
Therefore the person from PF dept. wanted to convey you not to rehire person within 3 months. The reason is 60 days waiting period, HR will take around 15 days to submit the claim (sometimes 2 months also depending upon organisation / HR culture) and finally PF dept. will process the claim between 15 days to 1 month, so total 3 months.
Hope your doubt is clear now.
Suresh