In which condition preference share holder take part in meeting of a company?

Preference shareholders typically have the right to participate in company meetings under specific conditions, such as when their rights are being affected or when dividend payments are in arrears. They may also be allowed to vote on matters that impact their interests, such as changes to the company's capital structure or any proposed amendments to the articles of association. However, in most cases, preference shareholders do not have voting rights in ordinary resolutions unless their preferences are directly impacted.