Step 1: Understanding the Concept:
The question asks to identify the sociologist who introduced the concept of 'Sanskritization'.
Step 2: Detailed Explanation:
The term 'Sanskritization' was coined and popularized by the eminent Indian sociologist M. N. Srinivas (Mysore Narasimhachar Srinivas).
He first used the concept in his D.Phil. thesis and later elaborated on it in his book Religion and Society Among the Coorgs of South India (1952).
Sanskritization describes the process by which a "low" Hindu caste, or tribal or other group, changes its customs, ritual, ideology, and way of life in the direction of a high, and frequently, "twice-born" caste. It is a form of social mobility.
Step 3: Final Answer:
The term 'Sanskritization' was coined by M. N. Srinivas.