Concept:
Article 350A of the Indian Constitution deals with providing primary education in the mother tongue to children belonging to linguistic minority groups.
• Protects linguistic minorities.
• Ensures educational accessibility.
• Promotes cultural preservation.
Step 1: Understand the constitutional provision.
Article 350A says:
State should provide adequate facilities for mother-tongue instruction
at the primary level.
Step 2: Why is this important?
This helps children:
Learn better in their native language
and preserve their linguistic identity.
Step 3: Eliminate incorrect options.
• Article 21A -- Right to Education
• Article 350A -- correct
• Article 372A -- adaptation of laws
• Article 371A -- special provision for Nagaland
Step 4: Final conclusion.
Hence, the correct answer is:
\[
\boxed{\text{Article 350A}}
\]