(2)A company shall be deemed to be unable to pay its debts,—(a)if a creditor, by assignment or otherwise, to whom the company is indebted for an amount exceeding one lakh rupees then due, has served on the company, by causing it to be delivered at its registered office, by registered post or otherwise, a demand requiring the company to pay the amount so due and the company has failed to pay the sum within twenty-one days after the receipt of such demand or to provide adequate security or re-structure or compound the debt to the reasonable satisfaction of the creditor;(b)if any execution or other process issued on a decree or order of any court or tribunal in favour of a creditor of the company is returned unsatisfied in whole or in part; or(c)if it is proved to the satisfaction of the Tribunal that the company is unable to pay its debts, and, in determining whether a company is unable to pay its debts, the Tribunal shall take into account the contingent and prospective liabilities of the company.