Step 1: Understanding Vedāṅgas.
The six Vedāṅgas are the auxiliary sciences of the Vedas:
1. Śikṣā (phonetics).
2. Vyākaraṇa (grammar).
3. Nirukta (etymology).
4. Chandas (meter).
5. Kalpa (rituals).
6. Jyotiṣa (astronomy/astrology).
Step 2: Role of Jyotiṣa.
Jyotiṣa is considered the "eye" of the Vedas, guiding the precise timing of rituals through astronomical and astrological calculations.
Step 3: Eliminating other options.
- Vyākaraṇam: Grammar, the "mouth" of the Veda.
- Kalpaḥ: Ritual procedure, the "hands" of the Veda.
- Śikṣā: Phonetics, the "nose" or sound aspect of the Veda.
- Jyotiṣam: Astronomy, the "eye" of the Veda. This is the correct answer.
Step 4: Conclusion.
Therefore, Jyotiṣa is the "Netram of Veda".