Zaheer Khan vs Percept D' Mark (India) Private Limited ... on 19 December, 2003
"(10) As to what constitutes restraint of trade is summarised in Halsbury's Laws of England (3rd ed.) Vol. 38, at page 15 and onwards. It is a general principle of the common law that a person is entitled to exercise his lawful trade or calling as and when he wills and the law has always regarded jealously and interference with trade, even at the risk of interference with freedom of contract as it is public policy to oppose all restraints upon liberty of individual action which are injuries to the interests of the State. This principle is not confined to restraint of trade in the ordinary meaning of the word "trade" and includes restraints on the right of being employed. The Court takes a far stricter view of covenants between master and servant than it does of similar covenants between vendor and purchaser or in partnership agreements. An employer, for instance, is not entitled to protect himself against competition on the part of an employee after the employment has ceased but a purchaser of a business is entitled to protect himself against competition per se on the part of the vendor. This principle is based on the footing that an employer has no legitimate interest in preventing an employee after he leaves his service from entering the service of a competitor merely on the ground that he is a competitor. Kores Manufacturing Co. Ltd. v. Kolok Manufacturing Co. Ltd. 1959 Ch 108 at p. 126. The attitude of the Courts as regards public policy, however has not been inflexible. Decisions on public policy have been subject to change and development with the change in trade and in economic thought and the general principle once applicable to agreements in restraints of trade have been considerably modified by later decisions. The rule now is that restraints whether general or partial may be good if they are reasonable. A restraint upon freedom of contract must be shown to be reasonably necessary for the purpose of freedom of trade.