 This is thought to have taken place during the 15th-century, when the Bengali Hindus led by Krishna Chaitanya, started a Sanskrit and Vaishnavist reawakening movement.The script was also used in Kishoreganj, Mymensingh and Netrakona in Bangladesh; and Tripura, Meghalaya and Assam in India.On the other hand, according to Ahmad Hasan Dani it was the Afghans living in Sylhet during the Afghan rule who invented the script, since some of Sylheti Nagri's letters resemble the symbols on Afghan coins, and there were a large number of Afghans living in Sylhet at that time.