This is the 5660th most frequent Turkish word.
planladığı
"Planladığı" means "that he/she/it planned" or "which he/she/it planned."
The word 'planladığı' here is used as an adjective, describing the activities Ahmet had intended to organize.
Ahmet tatil için planladığı etkinlikleri gerçekleştiremedi.
Ahmet could not carry out the activities he had planned for the vacation.
In this context, 'planladığı' acts as an adjective, referring to the steps that the team leader formulated or scheduled.
Proje sürecinde ekip liderinin planladığı adımlar dikkatle takip edildi.
During the project process, the steps planned by the team leader were carefully followed.
In this instance, 'planladığı' modifies 'surprise', indicating the action of planning performed by her in preparation for the given surprise.