Shash,like cookie monster stated,Debenture holders are NOT shareholders.in fact they are exactly opposite with totally different rights and remedies.
A person having the debentures is called debenture holder whereas a person holding the shares is called shareholder. A shareholder subscribes to the shares of a company. ... Debentures are part of loan. A shareholder or member is the joint owner of a company; but a debenture holder is only a creditor of the company.