Which of the following is NOT a source of law in India?

Public opinion is not considered a formal source of law in India. The primary sources of law include customs, statutes, and legal precedents (common law). Each of these sources has a distinctive role in forming the legal framework of the country.

The constitution is the supreme law of India, establishing the fundamental principles, rights, and duties that govern the country. It serves as the foundation for all other laws. Common law, which is based on judicial decisions and precedents, plays a crucial role in interpreting statutes and providing legal guidelines that are applicable in various situations.

Customs are also recognized as a source of law, especially in matters where there are no explicit statutes. For instance, customary laws are often applied in personal laws concerning marriage, inheritance, and property among certain communities.

In contrast, public opinion, while influential in shaping policies and societal norms, does not hold the same legal status as the aforementioned sources. It reflects the views and beliefs of the general populace but does not create binding legal obligations. Therefore, among the options provided, public opinion stands out as not being a formal source of law in India.