This is the 810th most frequent Turkish word.
idaresindeki
"Under the management of" or "controlled by."
The word 'idaresindeki' is used to express that something is being governed, managed, or controlled by someone—in this case, Mr. Orhan is managing the business.
Orhan Bey'in idaresindeki işletme geçtiğimiz yıl büyük bir başarı elde etti.
The business under Mr. Orhan's management achieved great success last year.
'idaresindeki' in this context describes the team's enhanced conduct as being under the management or guidance provided by Ahmet.
Bu takım, Ahmet’in idaresindeki performansını daha da artırdı.
This team improved its performance under Ahmet's management.
Here, 'idaresindeki' denotes activities or projects governed by the management or control designated by the village authority.