Explanation:

 Brahmi script is one of the most important writing systems in the world by virtue of its time depth and influence. It represents the earliest post-Indus corpus of texts, and some of the earliest historical inscriptions found in India. Most importantly, it is the ancestor to hundreds of scripts found in South, Southeast, and East Asia. This elegant script appeared in India most certainly by the 5th century BCE.
From the 8th century A.D., the Siddhamatrika script developed into Sarada script in Kashmir and Punjab, into Proto-Bengali orGaudi in Bengal and Orissa and into Nagari in other parts of north India. Nagari script was used widely in northern India from the 10th century onwards. The use of Nandinagari, a variant of Nagari script, is mostly confined to the Karnataka region.
In use from the 7th century ce and occurring in its mature form from the 11th century onward, Devanagari is characterized by long, horizontal strokes at the tops of the letters, usually joined in modern usage to form a continuous horizontal line through the script when written.