Analysis:

Although both originated in India, they are two different religions. Hinduism is a polytheistic religion with at least three main gods. Hinduism has a caste system and Buddhism advocates equality.

Buddhism originated in the 6th century BC and ancient India. Buddhism advocates "the equality of all beings in the soul" and opposes the "caste" system, but not slavery. Buddhism believes that living is suffering, which is rooted in various desires. Only by eliminating all desires and practicing can the soul enter the "paradise" in the future; Buddhism advocates patience and obedience. On the one hand, Buddhism has become the spiritual pillar of the suffering people, on the other hand, it symbolizes the interests of the ruling class and takes it as a tool to rule the people, so it has been widely supported and developed rapidly. It was designated as the state religion in the 3rd century BC and began to spread abroad: in the 1st century BC, it spread to Southeast Asia and Northwest Asia, from Kashmir to Khotan, China, and then it continued to develop in China.

Hinduism appeared in the fifth century and also originated in India. It is a fusion of Brahmanism, Buddhism and other religious doctrines to adapt to the idea of feudal unification. The basic teachings of Hinduism are "Dharma" and "Karma Cycle". The so-called "law" refers to the norms of people's lives and behaviors; The so-called "karmic reincarnation" means that if people live according to the given "laws", their souls can be reincarnated to a higher caste after death, and the inequality in this life is doomed in previous lives. Hindu karma paralyzed the working people and catered to the ruling class. It is the most powerful spiritual tool to distinguish the feudal exploitation relationship from the unequal caste system, so it is protected and supported by the feudal ruling class. After the ninth century, Hinduism became the dominant religion in the country. Due to the rise of Hinduism and the spread of Buddhism from the eighth century, Buddhism in India was almost destroyed in the thirteenth century. Although Buddhism recovered and developed to a certain extent after the second half of the 19th century, there are less than 20 million Buddhists in India today. Although Buddhism originated in India, it developed in China. However, Hinduism has a broad foundation in India today. Coupled with the influence of tradition, there are 800 million Hindus in India today, so India is now a country dominated by Hindus.