Step 1: Concept Clarification: The query seeks the definition of the ancient Sanskrit term "Atodya".
Step 2: Elaboration: Within ancient Indian musical and dramatic literature, notably Bharata Muni's Natyashastra, "Atodya" (or "Atodya Vadya") functions as a broad classification for musical instruments. The Natyashastra categorizes "Atodya" into four primary groups: Tata (stringed), Avanaddha (percussion/drums), Ghana (idiophones/cymbals), and Sushira (aerophones/wind instruments).
Step 3: Conclusion: The term "Atodya" translates to Musical Instruments.