Consider the following pairs : Reservoirs - States 1. Ghataprabha - Telangana 2. Gandhi Sagar - Madhya Pradesh 3. Indira Sagar - Andhra Pradesh 4. Maithon - Chhattisgarh How many pairs given above are not correctly matched?

1. Pair 1: Ghataprabha reservoir is located in Karnataka, not Telangana. This pair is not correctly matched. 2. Pair 2: Gandhi Sagar dam and reservoir are on the Chambal River in Madhya Pradesh. This pair is correctly matched. 3. Pair 3: Indira Sagar dam and reservoir are on the Narmada River in Madhya Pradesh, not Andhra Pradesh. This pair is not correctly matched. 4. Pair 4: Maithon dam and reservoir are on the Barakar River in Jharkhand, not Chhattisgarh. This pair is not correctly matched. 5. The question asks how many pairs are *not* correctly matched. Pairs 1, 3, and 4 are not correctly matched. Therefore, three pairs are not correctly matched.