The correct option is (a) - Paintings from four States of India have been mentioned.
[as per provisional answerkey]The question asks for the statement that is not correct based on the passage. According to the text, only two specific types of paintings from two states are mentioned: 1. Bengal's Pattachitra paintings and 2. Tamil Nadu's Thanjavur paintings. The other crafts mentioned are Assam's bamboo crafts and Madhya Pradesh's tribal sculpture. Therefore, the claim that paintings from four states were mentioned is factually incorrect according to the passage.
This question tests Literal Comprehension and Data Verification, requiring the reader to distinguish between different categories of art forms (paintings vs. crafts) mentioned in the text.