Corporatisation and demutualisation exemption: national stock exchange exempt from filing a scheme, subject to regulator approval for structural changes. The regulator specifies that National Stock Exchange, having represented itself as already corporatised and demutualised, is not required to submit a scheme for corporatisation and demutualisation, provided it does not change its corporate or demutualised structure without prior regulatory approval and complies with further conditions the regulator may impose.