Which constitutional article granted Jammu and Kashmir the right to have a separate constitution, state flag, and internal administrative autonomy while it was under Indian governance as a state from 1952 until 31 October 2019?

Jammu and Kashmir is a region in the northern section of the Indian subcontinent that has been the subject of a long-standing conflict between India, Pakistan, and China since 1947.

The region was granted special status under Article 370 of the Indian constitution, which provided Jammu and Kashmir with the authority to have a separate constitution, a state flag, and internal administrative autonomy while it was governed by India as a state from 1952 until 31 October 2019.