In the beginning, the quotas for Scheduled Castes and Scheduled Tribes were rarely filled, due to lack of qualified candidates. With the spread of education among them and the emergence of a middle class coming from lower castes, the reserved posts are presently being filled.
In the surveyed sample of 50 IAS officers, 6 were Brahmins, 5 Kshatriyas (mostly Rajput), 4 Banias, 10 from agrarian dominant castes (Jat, Bhumihar, Kamma), 15 OBCs (Kurmi, Yadav, Naidu, Christians and Muslims), 7 SCs (Chamar, Mahar, Mala) and 3 STs (Banjara, Irukala, Kishan).