Unable to deposit minimum subscription in PPF account?

[v.r.s.nathan]

If I want to invest in the year April’2011. What is the default fee, I have to pay in the year April’ 2011?

PPF Default Fee - 50 (Rs. 50 per year)
Arrears in subscription – Rs. 400
Plus PPF Investment Deposit for year 2011 – Rs. 500
Total = 950