Step 1: Concept Identification:
The objective is to determine the playwright of the ancient Sanskrit drama, Svapnavasavadatta (The Vision of Vasavadatta).
Step 2: In-depth Analysis:
Svapnavasavadatta stands as a highly acclaimed work within Sanskrit theatre. It is authoritatively attributed to the ancient Indian dramatist Bhasa, recognized as a foundational figure in Sanskrit drama, preceding Kalidasa. The other mentioned authors are distinguished by their respective contributions: Kalidasa for plays such as Abhijnanasakuntalam, Bhavabhuti for Uttararamacarita, and Mohan Rakesh for contemporary Hindi dramas like Adhe Adhoore.
Step 3: Conclusive Determination:
Bhasa is identified as the author of Svapnavasavadatta.