Dr. Y. S. Parmar became the Chief Minister of Himachal Pradesh for the first time on 28th January, 1953. He was the first Chief Minister of Himachal Pradesh and served as the Chief Minister for a record 17 years, from 1953 to 1977. He was a member of the Indian National Congress and was known for his strong leadership and commitment to the development of Himachal Pradesh.
Option A is incorrect because Dr. Y. S. Parmar did not become the Chief Minister of Himachal Pradesh on 24th March, 1952.
Option B is incorrect because Dr. Y. S. Parmar did not become the Chief Minister of Himachal Pradesh on 24th March, 1954.
Option C is incorrect because Dr. Y. S. Parmar did not become the Chief Minister of Himachal Pradesh on 28th January, 1953.
Option D is correct because Dr. Y. S. Parmar became the Chief Minister of Himachal Pradesh for the first time on 28th January, 1953.