I have submitted reviews for various apps this month (June) to the India Windows Store. However, the reviews section for all apps still do not include reviews from June. Most recent reviews I see are from May 31. It's been 10 days already. :\
I put in a review for Hitman GO on Friday, and it was posted yesterday. They don't seem to update on the weekends, and I've seen it take up to a week for reviews to pop up, but they eventually do. I'm not really sure how it works.