The deduction towards the scheme is 8% of the basic. An equal amount is deposited by the state government into the employees account . After completing 10 years of service and On regularization of services an employee contributing towards CPF is given pension benefits, if opted by him. Deduction of such employees after exercising of the option will stop towards CPF and all his future deductions will be made towards GPF.
Now a days it has been made compulsory by the most state govt to shift to CPF.