To obtain Power of Attorney (POA) for a parent, choose the type—financial (general or durable) or medical—then draft the document, clearly define powers, and have your parent sign it while they have mental capacity. Ensure it is legally valid by following local rules for stamp paper, witnesses, notarization, and registration (especially for property matters in India). It’s best to consult a lawyer if your parent has declining capacity or family disagreements, to avoid legal issues and ensure the POA is properly executed.