Trending @Wipro; Can temporary WFH be applied for 2-3 days in a week or should it be applied only for 15 days at a stretch?

You can apply for 2-3 days or as per your wish.

As per the recent rules, you can apply for max 15 days per calendar year. But it requires your manager approval. It won't get auto approved

you can but you need that to be approved by your manager , if he doesnt approves before 5th day from the raised day , that request will be auto rejected and you may get compliance mail for not working from office