Ok let me clarify.
World Team Ranking has the component of Singles Ranking. How is this component calculated? With help of a list having the top 3 players score. For example, China's score would be 8800 (Sun) + 4505 (Wang) + 4325 (Chen) = 17630. Similarly all nations score is calculated and a list is formed. Now, the top nation in the list gets 2000 points. 2nd placed nation gets 1850 and so on.
Now, why would this ranking change from what we are seeing at ITTF website at present? Because Singles Ranking of players will change not only because of World Championships (minor change) but also because of points dropped from Feb 2023 and other points earned in Feb 2024. For example, if you check HKG has a Singles Total of 1163 (including 580 of DOO Hoi Kem) but in the WR published on 20 Feb, DOO has only 315 points. So, HKG's score would see a drop in the next update.
Since, March Team Ranking would be used for Olympic Qualification, it is safe to assume that March Singles Ranking would be used to calculate that Team Ranking.
https://www.ittf.com/wp-content/uploads/2021/04/ITTF-World-Team-Ranking-Regulation-20230524.pdf
Since, I have done my calculations on the fly with the main aim of finding out if India has qualified or not, there is a good chance that there might be some errors in the calculations. It would be great if someone can do proper calculations to find out the correct scores.
In the Men's section, since the gap between India (last qualified) and Iran (Reserve 1) is decent according to calculations of @Siddhartha Talukdar I have not bothered to check it. Would appreciate if someone did similar calculations for Men's section as well.