Q. Who invented the Mundari Bani script?
Answer: Rohidas Singh Nag
Notes: Mundari Bani is a script for the Mundari language invented by Rohidas Singh Nag. It was created to represent the language uniquely, separate from Devanagari and Roman scripts. The script helps preserve the linguistic identity of the Mundari-speaking community. Rohidas Singh Nag developed this script in the 20th century.