Answer
(Fatwa: 00/00/M=1432)
The condition of interest does not apply to the amount that is deducted from the salary each moth in the name of PF and the government or institution adds same amount and deposits it in the fund as well as interest is received on it. The reason is that the employee does not deposit it by his consent rather the government deducts some amount before the employee receives his salary. And the employee receives the total amount after his retirement. That amount is halal for you. And the zakah of complete 42 years is not obligatory on you, rather you will have to pay zakah of that year only in which you received the amount.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband