Form of Contract: There are no universally acceptable norms as to the form of export contracts. It need not be a formal document signed by both the parties and it need to be stamped. What is necessary is to have some documentary evidence to show that there had been an agreement. These evidences can be letters, telex messages,. electronics data interchange, purchase orders or letters of' credits. Oral contracts are also legally binding but in the Indian context, the exporter must have some written evidence because of the need to produce evidence of contract to a number of export-service organisations and regulatory agencies.