Section 77 of CPC : Section 77: Letter of request.

Explanation using Example

Example 1:

Rajesh is involved in a civil lawsuit in India regarding a property dispute. A key witness, his cousin Suresh, who has crucial information about the property, resides in the United States. Instead of sending a commission to the U.S. to examine Suresh, the Indian court decides to issue a letter of request to the appropriate judicial authority in the U.S. to examine Suresh and record his testimony. This testimony will then be sent back to the Indian court to be used in the ongoing case.

Example 2:

Meera is fighting a civil case in India over a breach of contract. Her former business partner, Anil, who now lives in Canada, has important evidence that can support her case. The Indian court, recognizing the importance of Anil's testimony, issues a letter of request to the Canadian judicial authorities to arrange for Anil's examination. The Canadian authorities conduct the examination and send the recorded testimony back to the Indian court, which then uses it to make a decision in Meera's case.