A civilized society in the Indus Valley, which had sophisticated systems of town planning and drainage. They had some from of writing, and they were probably worshipers of goddesses and there were fertility rites.
The Time when the Vedas were composed. Religion centered around sacrifice. The language was related to other Indo-European group; Proto-Indo-European linguistic origin. There exist two theories about the development of these earöy south Asian traditions.
The idea of Dharma was formed, worship to images of daities replaced sacrificial worship. Vaishnavism, Saivism and Shaktism were developed.
Muslim Arabs started to invade India in from the 7th century onwards.
Many generations of Muslim leaders leaded the country and restricted Hindu practices.
British supremacy rose in India because of their defeat of the Mughul Empire. At first the British didn't interfere with the Indian culture and religion, but when scholars arrived they wanted to "civilize" the Indians.
Some Hindus defended their religion, but some started to live by the Western standards. Hindu leaders realized they needed to be more thoughtful and adaptable in order for India to hold its identity. Hinduism was much later brought to the Western world indeed because of the forming of Indian nationalism and a missionary spirit which were needed to form the tradition of change and adapt.
Brahmo Samaj; started in 1830. Its worship methods follow those of Christians. Was born because of the influence of British in India.
Brahma Kumaris; don't follow Hinduism, but use language of those traditions, and personal development.