RAMACHANDRA IYER, J.

This is a petition under article 226 of the Constitution for the issue of a writ of prohibition or other appropriate writ, prohibiting the first respondent from granting to the second respondent certified copies of income-tax assessment orders or other records relating to the income-tax assessment of one G. V. Rangaswami Naidu G. V. Rangaswami Naidu was an income-tax assessee who was running a bus service in Dowlatabad, Krishnagiri, Salem Dt. He died intestate on October 21, 1956, leaving behind him his heirs, the first petitioner, his widow, a minor daughter, and the second respondent, his mother. The widow entered into possession of the estate. She put herself forward as the proprietrix of the bus service, and she submitted returns to the income-tax authorities for the assessment years 1956-57 and 1957-58. She was assessed to tax on the basis of the returns ; the taxes have also been paid

The second respondent filed O.S. No. 3 of 1957. in the court of the Subordinate Judge, Salem, against the petitioner and her daughter, claiming partition of the estate left by her son, Rangaswami Naidu. The bus service was one of the items of properties, in respect