Q. Who wrote Khortha Bhasha Evam Sahitya: Udbhav Evam Vikas?
Answer: B.N. Ohdar
Notes: Khortha Bhasha Evam Sahitya: Udbhav Evam Vikash was authored by B.N. Ohdar. Khortha is a regional language spoken primarily in Jharkhand. The book studies the origin and development of Khortha language and its literature. B.N. Ohdar is recognized for his contributions to Khortha literary research and documentation. This work contributes to the preservation and understanding of Jharkhand's linguistic heritage.