Which of the following statements is NOT true about languages in India?

Concept: The Indian Constitution treats languages in three distinct ways: the Eighth Schedule, which gives constitutional recognition to a specific list of languages (currently 22, after additions by later amendments); the Union's official-language framework under Article 343, where Hindi is the official language and English continues to be used for Union purposes under the Official Languages Act, 1963 -- commonly described as English's "Associate Official Language" status; and a linguistic classification, widely used in general-knowledge and civil-services material, that separates classical/ancient languages -- those with an independent ancient literary tradition and little everyday vernacular use today, such as Sanskrit and Pali -- from Modern Indian Languages (MILs), the living vernacular languages such as Hindi, Bengali, and Marathi that developed over time and are widely spoken today.

Application: Checking each statement against this framework: English continuing to be used for Union purposes alongside Hindi -- its widely used "Associate Official Language" description -- holds; the Eighth Schedule does currently list 22 languages; and the statement crediting Hindi with a widely used link-language role is accepted as true under the standard exam-context reading -- these three statements hold up as true. Sanskrit, however, is classified as a classical/ancient language, not a Modern Indian Language, even though it has influenced many modern languages -- so the statement calling it a "Modern Indian Language" does not hold.

Cross-check: Cross-checking each statement by its own content confirms this:

• English continuing to serve alongside Hindi for Union purposes -- true, per Article 343(2) and the Official Languages Act, 1963, commonly described as its Associate Official Language status.

• 22 languages under the Eighth Schedule -- true, the schedule's present count after successive constitutional amendments.

• Hindi's link-language role -- accepted as true under the standard exam-context reading of the statement, given Hindi's widely recognised use as a link language in India.

• Sanskrit as a Modern Indian Language -- false, since Sanskrit belongs to the classical/ancient language group, not the modern vernacular group.

Since the question asks for the statement that is NOT true, the statement about Sanskrit is the one that fails to hold, making it the answer.