law: 3. Payment of consideration for disinvestment in the company.-
  (1) For the transfer to, and vesting in, any person, the shares of the company, there shall be given to the Central Government by such person or in case such person is a company, by such company, such consideration, having regard to the optimum valuation of land, assets and liabilities of the company in accordance with a valuation method as specified by the Central Government.
  (2) The manner of payment of consideration for transfer of shares of the company to the transferee shall be such as may be agreed upon between the transferor, the company and the transferee, the person or the company, as the case may be.