The Clue India's national quizzing assn.?
The Answer CBI
The answer "CBI" stands for the Central Bureau of Investigation, which is a major agency in India. While it is primarily known for investigating crimes, it also plays a role in various national quizzes and competitions related to general knowledge and awareness. The clue cleverly uses "quizzing" to hint at the investigative nature of the CBI, as they often quiz suspects and gather information. Thus, CBI fits the clue as a prominent organization in India's landscape.