Brihaspati is traditionally regarded as the founder of Carvaka philosophy, although the historical existence of a single founder is debated.

Carvaka philosophy emphasizes materialism, asserting that the only reality is the physical world and that consciousness and mental phenomena are products of the material body.

Carvaka philosophy denies the existence of an immaterial soul, arguing that consciousness is a function of the physical body and ceases to exist after death.

Carvaka philosophy emphasizes the importance of sensory experience as the source of knowledge, rejecting the validity of inference and other forms of non-sensory knowledge.

Carvaka philosophy advocates hedonism as the basis of ethics, asserting that the pursuit of pleasure and the avoidance of pain are the ultimate goals of human life.

Carvaka philosophy denies the existence of an afterlife, arguing that consciousness ceases to exist after death and that there is no reward or punishment for one's actions in this life.

The Nyaya Sutra is a text associated with Nyaya philosophy, not Carvaka philosophy.

Carvaka philosophy faced significant opposition from orthodox Hindu philosophers, who criticized its materialism and skepticism and sought to suppress its teachings.

Carvaka philosophy declined around the 12th century CE, due to the rise of other philosophical schools and the increasing influence of orthodox Hindu thought.

Carvaka philosophy declined due to a combination of factors, including persecution by orthodox Hindu philosophers, lack of patronage, and internal divisions within the school.

Carvaka philosophy is no longer a major school of thought in India, but it is still practiced by a small number of individuals and groups who identify with its materialist and skeptical teachings.

Carvaka philosophy faces a number of challenges today, including persecution from religious groups, lack of academic interest and support, and internal divisions within the Carvaka community.

The future of Carvaka philosophy is uncertain and depends on a variety of factors, making it difficult to predict its trajectory.

Promoting the study and practice of Carvaka philosophy today requires a multifaceted approach, including supporting academic research, organizing conferences and workshops, and translating Carvaka texts into modern languages.