Long term Capital gain on liquidation

A family formed a private limited Company around 20 years ago, all the shareholders/directors of the company are the family members of the same family. The company has a property purchased under its name around 20 years ago,Now shareholders wants to liquidate the company but the SDV of the property is very high. Therefore the taxable value is very high (without any flow of money), so please suggest the tax treatment for the same.