Answer:
(Fatwa: 810/688=B-1429)
Though the government does not invest the money of the aforesaid scheme in interest-based transactions but the rule of dividing profits gained form those money is purely interest. These profits are not divided as per the rule of partnership and Muzarabah, so the addition which is achieved on the accumulated amount of the abovementioned scheme is purely interest; therefore it is unlawful to partake in it.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband
