Gujarat High Court Civil Manual (subordinate court practice), 1960
Evidence can be obtained in a foreign country by means of letters of request addressed to the Judicial authorities of the country; or by the direct appointment by the Indian Court of someone in the foreign country to take the evidence without the intervention of the local authorities. There is a third method, made up of a combination of the other two, which however, is only available under and by virtue of certain conventions. This method consists of sending letters of request addressed to the foreign judicial authorities asking them to cause the evidence to be taken by a specific person designated by the Indian Court in the letter of request.