(5)Without prejudice to the provisions of sub-sections (1) to (4), the Central Government or the Reserve Bank of India or a State Government or a public financial institution or a State level institution or a scheduled bank may, if it has sufficient reasons to believe that any company has become, for the purposes of this Act, a sick company, make a reference in respect of such company to the Tribunal for determination of the measures which may be adopted with respect to such company:Provided that a reference shall not be made under this sub-section in respect of any company by—(a)the Government of any State unless all or any of the undertakings belonging to such company are situated in such State;(b)a public financial institution or a State level institution or a scheduled bank unless it has, by reason of any financial assistance or obligation rendered by it, or undertaken by it, with respect to such company, an interest in such company.