Step 1: Understanding the Question:
The objective is to identify the specific Fundamental Right in the Indian Constitution that prohibits the practice of untouchability.
Step 2: Detailed Explanation:
The Articles provided are part of the Fundamental Rights (Part III):
- Article 14: Right to Equality before Law.
- Article 17: Abolition of Untouchability. It forbids the practice in any form and makes it a punishable offense.
- Article 19: Protection of certain rights regarding freedom of speech, etc.
- Article 21: Protection of life and personal liberty.
Article 17 is unique because it is an absolute right and does not have specific "reasonable restrictions" mentioned within the article itself.
Step 3: Final Answer:
Article 17 abolishes "Untouchability".