Step 1: Jyotiṣa Divisions.
Jyotiṣa Śāstra, also known as Vedic astrology, is segmented into three primary branches:
1. Hora Śāstra – Focuses on predictive astrology.
2. Saṁhitā Śāstra – Covers general and mundane astrology.
3. Siddhānta Śāstra – Pertains to astronomical calculations.
Step 2: Evaluation of Provided Options.
- Horaśāstra (1): Confirmed as a valid division of Jyotiṣa.
- Saṁhitāśāstra (2): Confirmed as a valid division of Jyotiṣa.
- Siddhāntaśāstra (3): Confirmed as a valid division of Jyotiṣa.
- Akalanśāstra (4): Identified as not belonging to the Jyotiṣa divisions, thus deemed incorrect.
Step 3: Final Determination.
Consequently, the classification that does not align with Jyotiṣa Bheda is Akalana Śāstra.