IRB INVIT TRUST- new game in the town!

IRB InvIT has declared June 2024 toll collections which have increased ~3% y-o-y. The increase in toll collections has been tepid in April and May as the annual toll rate hike was deferred due to the model code of conduct being in place for the elections. The toll hike was finally implemented on 3rd June and despite this even June toll collections have registered a tepid increase y-o-y. Can anyone throw some light on the reasons behind this?