When did Article 239A become applicable to the Union territory of Jammu and Kashmir?
The context provided doesn't explicitly state when Article 239A became applicable to the Union territory of Jammu and Kashmir. However, it is mentioned that "The Jammu and Kashmir Reorganisation Act, 2019 (34 of 2019) s. 13 (w.e.f. 31-10-2019)" made Article 239A applicable to the Union territory of Jammu and Kashmir. Therefore, it can be inferred that it became applicable from October 31, 2019.