Which of the following statements are correct?
A. A speedy increase in the field of milk production is called the white revolution .
B. To increase the pace of the white revolution, Operation Flood was started.
C. The father of Operation Flood was Dr Verghese Kurien.
D. The Operation Flood was started by the National Dairy Research Institute in 1975.
Choose the correct answer from the options given below:

A. Speedy increase in the field of milk production is called white revolution. This is CORRECT. The White Revolution is the name given to the spectacular and rapid rise in India's milk production, which successfully transformed the country into the world's largest milk producer. It is a key agricultural achievement following the Green Revolution.

B. To increase the pace of the white revolution, Operation Flood was started. This is CORRECT. Operation Flood was the specific program launched in 1970 by the NDDB to drive the White Revolution. It aimed to establish a nationwide milk grid and empower farmers through cooperative societies.

C. The father of Operation Flood was Dr Verghese Kurien. This is CORRECT. Dr Verghese Kurien is recognised as the "Father of the White Revolution" and the chief architect of Operation Flood. He developed the highly successful Anand Pattern co-operative model, famously used by Amul.

D. The Operation Flood was started by the National Dairy Research Institute in 1975. This is NOT CORRECT, because Operation Flood was launched in 1970 (not 1975) and was started by the National Dairy Development Board (NDDB), not the National Dairy Research Institute (NDRI). 

Thus, (A), (B), and (C) are the CORRECT statements.