Ol Chiki script came into existence in the year?

The correct answer is: A. 1926

Ol Chiki is a writing system for the Santali language. It was created by Raghunath Murmu in 1926. Ol Chiki is a phonetic script, which means that each letter represents a single sound. This makes it easy to learn and use. Ol Chiki is now the official writing system for Santali in India. It is also used by Santali people in Bangladesh, Nepal, and Bhutan.

Option B is incorrect because 1927 is the year in which the first Ol Chiki dictionary was published.

Option C is incorrect because 1941 is the year in which the first Ol Chiki grammar book was published.

Option D is incorrect because 1921 is the year in which Raghunath Murmu was born.