Which one of the following pairs is not correctly matched?

1. (A) The States Reorganisation Act, 1956, led to the creation of Andhra Pradesh as the first state formed on a linguistic basis (integrating Telugu-speaking areas). (Correctly matched) 2. (B) The Treaty of Yandabu (1826) marked the end of the First Anglo-Burmese War and led to the British annexation of Assam. (Correctly matched) 3. (C) The State of Bilaspur was a separate Part C state of India which was merged into Himachal Pradesh in 1954. (Correctly matched) 4. (D) Gujarat became a State on May 1, 1960, when the bilingual Bombay State was bifurcated into Gujarat and Maharashtra. The Year 1966 is associated with the formation of Haryana and the reorganization of Punjab. (Incorrectly matched) 5. Therefore, the pair that is not correctly matched is Year 1966: Gujarat becomes a State.