Winding up is the process of dissolving a company where its assets are collected and debts paid off, with any surplus distributed to members. There are three modes - compulsory, voluntary, and under court supervision. Compulsory winding up occurs via a court order, while voluntary winding up is by member or creditor resolution. An official liquidator is appointed to oversee the process, taking assets, convening meetings, and submitting reports. The order of payment is secured then unsecured creditors, preferential payments, members. Dissolution occurs via a court order when winding up is complete.