Where an Investment Fund comprises two classes of Shares and subject to compliance with such conditions as the Central Board may from time to time prescribe with regard to the notice to be given on conversion, the Central Board shall at the request of the Holder of any Share in an Investment Fund at any valuation date convert such number of Shares of either class recorded as held by the Holder as the Holder may require into Shares of the other class, being Shares which on that valuation date are of the basic value determined in accordance with this Scheme as nearly as possible equal to the basic value so determined of the Shares being converted. The proportion of the value of the Investment Fund attributable to each class of Shares shall immediately after that valuation date be adjusted accordingly.