Eastern Indo-European languages are a branch of the larger Indo-European language family. This group primarily includes languages spoken in regions of South Asia and Eastern Europe. Notable languages in this category are Sanskrit, Hindi, Bengali, and Slavic languages like Russian and Polish. These languages share common linguistic features and historical roots, tracing back to the ancient Proto-Indo-European language. They have evolved over time, influenced by various cultures and migrations, leading to the rich diversity of languages and dialects we see today in India, Pakistan, and parts of Europe.