After the Indian independence in 1947, Chittoor became a part of the erstwhile Madras state. The modern Chittoor District was formerly North Arcot District, which was established by the British in the 19th century had Chittoor as its headquarters . On 1 April 1911, district was split into Chittoor district and North Arcot District.
Chittoor District was constituted on 1st April, 1911 with the admixture of the Culture and Traditions of three borders states of Andhra Pradesh, Tamilnadu and Karnataka. It then comprised the Taluks of Chittoor, Palamaner and Chandragiri transferred from Old North Arcot District of Tamilnadu, Madanapalle and Voyalpadu Taluks of Kadapa District and Ex-Zamindari areas of Punganur, Srikalahasthi, Puttur and Old Karvetinagar estate. Later, Kangundi Taluk of North Arcot District excluding 22 villages was transferred to Palamaner Taluk on 1st December, 1928. This taluk also gained eight villages which were the enclaves of Mysore (Karnataka) State under the Provinces and States (Absorption of enclaves) Order, 1950. The next major change in the jurisdiction of the district took place on 1st April, 1960 as a result of Pataskar Award consequent on the re-organisation of the state on linguistic basis, a major portion of Tiruthani Taluk was transferred to Chengalpattu district of Tamilnadu. Instead one Taluk known as Sathyavedu comprising 76 villages of Tiruvallur Taluk, 72 villages of Ponneri Taluk both of Chengalpattu District of Tamilnadu and 17 villages of Puttur Taluk, 19 villages of Tiruttani Taluk were added to Chittoor District. Also from the same date, the Sub-Taluks of Kuppam and Bangarupalem were constituted transferring 220 villages from Palamaner Taluk and Three villages from Krishnagiri Taluk of Salem District of Tamilnadu to form Kuppam Sub-Taluk and 145 villages from Chittoor Taluk to form Bangarupalem Sub-Taluk. Subsequently, Kuppam and Bangarupalem were made full fledged taluks. The taluks of the district were re-organised into 66 Revenue Mandals in 1985. Again the District re-organised with 31 Mandals and 4 Revenue Divisions on 4th April, 2022.