The first humans are believed to have migrated to India around 70,000 years ago. These early humans, known as Homo sapiens, migrated from Africa, possibly through a coastal route, and eventually settled in the Indian subcontinent. There, they established some of the oldest human civilizations and developed rich cultural and social practices. Please note that this timeline is based on archaeological and genetic evidence, and our understanding of early human migrations may change as more research is conducted.