1. Under Section 9 of the Foreigners Act, 1946, the burden of proving that a proceedee is not a foreigner lies upon the proceedee, regardless of anything contained in the Indian Evidence Act, 1872. This non-obstante clause mandates that facts within the personal knowledge of the individual must be averred by him. 2. In exercising certiorari jurisdiction under Article 226 of the Constitution, a Writ Court does not act as an appellate tribunal; it reviews only the decision-making process for errors apparent on the face of the record and declines to review factual findings unless the record suffers from illegality or procedural impropriety. 3. A proceeding under the Foreigners Act requires the proceedee's written statement to disclose material facts, including date of birth, place of birth, names and places of birth/citizenship of parents, and details of grandparents. A vague written statement failing to set up such facts prevents the adduction of material evidence. 4. Oral evidence in such proceedings must be ample, consistent, and supported by contemporaneous documentary records. Variance between pleadings and evidence is not permissible; a party cannot adduce evidence at trial for facts not pleaded in the written statement. 5. The petitioner's case was dismissed due to gross inconsistencies in family history testimony, failure to prove key documents like the Jamabandi, and absence of corroborative evidence in voter lists, constituting failure to discharge the statutory burden of proof.