What were the major religious influences of India?

India's religious landscape has been profoundly shaped by several major influences, primarily Hinduism, Buddhism, Jainism, and Sikhism. Hinduism, the predominant religion, emphasizes a diverse array of beliefs and practices centered around karma, dharma, and moksha. Buddhism emerged in the 6th century BCE as a reform movement within Hinduism, focusing on the Four Noble Truths and the Eightfold Path. Additionally, the arrival of Islam in the 7th century CE brought significant cultural and religious changes, leading to the formation of syncretic traditions and the establishment of Sikhism in the 15th century, which sought to unify elements of both Hinduism and Islam.