Analysis of statements regarding oil refineries in India:
- (A) Digboi is a market-based oil refinery. Digboi, located in Assam, is historically significant but not primarily market-based. This statement is incorrect.
- (B) Tatipaka Oil Refinery is located in Andhra Pradesh. This statement is correct.
- (C) Numaligarh Oil Refinery is located in north-east India. Numaligarh Oil Refinery is in Assam, which is in north-east India. This statement is correct.
- (D) Bina Oil Refinery is located in Madhya Pradesh. This statement is correct.
Correct statements are (B), (C), and (D). The correct option is: (B), (C), and (D) only.