As per the current rule, the LED bails must be fully dislodged to deem a wicket.
According to ESPNCricinfo, the league has informed teams that the umpires will only deem a wicket in run-outs and stumpings if the LED bail is fully dislodged.
This amendment differs from the earlier playing condition where stumps were considered broken as soon as the bails lit up.
Appendix D of the current rules for WPL 2025 talks about the bail dislodge. It states, "Where LED wickets are used, the moment at which the wicket has been put down shall be deemed to be the first frame in which the LED lights are illuminated, and subsequent frames show the bail permanently removed from the top of the stumps."
As per the report, the rule change was prompted by the realisation that the batch of zing bails had been lighting up at the slightest disturbance.
The same publication also reported that “the bails began to flash even when one spigot was still resting on its groove.”
Therefore, the third umpire of the aforementioned fixture, Gayathri Venugopalan, made her final decision on the basis of the new rule change, sparking a debate.
While the TV umpires were informed about the amendment before the clash, the two teams - DC and MI - were informed about the decision a day after the game.
(With ESPNCricinfo Inputs)