The document discusses different types of amalgamation and reconstruction between companies. Amalgamation can occur through a merger where two companies combine to form a new company, or through absorption where one company takes over another existing company. Amalgamation in the nature of a merger involves the transfer of all assets and liabilities of the transferor company to the transferee company, with shareholders of the transferor receiving equity in the transferee. Amalgamation in the nature of a purchase can occur if the merger conditions are not fully met. Internal reconstruction only impacts one company, while external reconstruction involves at least two companies with one taking over the assets and liabilities of another.