Andhra Pradesh and Madras (Alteration of Boundaries) Act, 1959, enacted by the Parliament of India under the provisions of article 3 of the constitution, went into with effect from 1 April 1960.
Under the act, Tirutani taluk and Pallipattu sub-taluk of Chittoor district of Andhra Pradesh were transferred to Madras State in exchange for territories from the Chingelput (Chengalpattu) and Salem Districts.
[citation needed] The parliamentary constituencies of Chittoor in Andhra Pradesh and the Chingleput and Tiruvallur in Madras were considerably altered by this exchange of territories.
Consequently, the total number of seats in the Legislative Assembly of Andhra Pradesh was reduced from 301 to 300.
Meanwhile, the Madras Legislative Assembly gained one seat, the total increasing from 205 to 206.