The correct answer is D. No fee is payable.
The Consumer Protection Act, 1986, does not provide for any fee to be paid by the aggrieved person to the District Consumer Forum while filing his complaint. However, the Forum may, in its discretion, impose a fee not exceeding Rs.100 on the complainant if it is satisfied that the complaint is frivolous or vexatious.
The Act also provides that the Forum may, if it is satisfied that the complainant is unable to pay the fee, dispense with the payment of such fee.
The purpose of the Consumer Protection Act is to provide a speedy and inexpensive redressal mechanism for the grievances of consumers. Imposing a fee on the complainant would defeat the very purpose of the Act.