Integrating current affairs in Mains answers is about relevance, not decoration. You don’t add news randomly. You link current developments directly to the core demand of the question. That’s what makes your answer look mature and updated.

Start by connecting static concepts with recent examples. If the question is on federalism, mention a recent Centre–State dispute. If it’s about climate change, refer to a recent COP meeting or a government initiative. One strong, relevant example is enough to elevate your answer.
Use current affairs in three places: introduction (latest data or report), body (examples, case studies, schemes), and conclusion (recent reforms or global commitments). This keeps your answer contemporary without making it bulky.
The key is selectivity. Don’t overload facts. Choose 1–2 impactful references that directly strengthen your argument. That’s how current affairs add depth, not distraction, to your Mains answers.