The Supreme Court held that forcing a person to undergo polygraph, brain mapping, and narcoanalysis tests is violative of:

In the landmark judgment Selvi v. State of Karnataka (2010), the Supreme Court of India ruled that involuntary administration of narcoanalysis, polygraph examinations, or brain mapping violates an individual's right to privacy under Article 21 and protection against self-incrimination guaranteed under Article 20(3) of the Constitution.