AID's registered and central office is located in Chennai city in the state of T.Nadu ,South of India . Due to political and strategic reasons emanating at the inception of the organisation it has been so. It has core and decentralised teams working at every regional and project levels. Geographically its focus of works have been concentrated in the states of Bihar which later bifurcated into Jharkhand in the year 2000, Odisha, T.Nadu, Andhra Pradesh and Pondicherry.
All the works in the Eastern zone of Jharkhand and Odisha are managed from its Regional offices based in Ranchi and Jamshedpur.
All works in the Southern Zone of T.Nadu, Andhra Pradesh and Pondicherry are managed from its Central office based in Chennai.