Concept:
The National Education Policy (NEP) 2020 emphasizes inclusive and holistic education, with a strong focus on language development and cultural preservation.
Step 1: Understand the policy focus.
NEP 2020 highlights the importance of learning in one's mother tongue or regional language, especially in the early years of education.
Step 2: Key objective regarding language.
It promotes multilingualism and aims to strengthen students' understanding by teaching them in familiar languages.
Step 3: Evaluate the options.
- Promote only English $\rightarrow$ Incorrect, NEP supports multiple languages
- Eliminate regional languages $\rightarrow$ Incorrect
- Encourage multilingualism and mother tongue-based education $\rightarrow$ Correct
- Single national language $\rightarrow$ Incorrect
Step 4: Conclusion.
Thus, the main objective is to encourage multilingualism and mother tongue-based education.