Which 12th-century Jain text deals primarily with cosmology and the structure of the universe?

The correct option is Sangrahini Sutra.

Explanation

Jain literature encompasses a vast corpus of canonical and non-canonical texts covering philosophy, ethics, narratives, and science. Jain cosmology is a highly developed field that describes the universe (Loka) as a structured entity comprising the upper, middle, and lower worlds. The Sangrahini Sutra is a pivotal text in this genre.

Option Analysis:

• Sangrahini Sutra Sangrahini Sutra: Correct. Composed in the 12th century (attributed to Shrichandra Suri, c. 1136 CE), this text is a comprehensive treatise on Jain cosmology and cosmography. It details the structure of the universe, the geography of the continents (such as Jambudvipa), the arrangement of celestial bodies, and the various realms of existence (heavens and hells). It is also historically significant for its tradition of elaborate manuscript illustrations depicting the universe.
• Kalpasutra Kalpasutra: Incorrect. Attributed to Bhadrabahu (c. 4th century BCE), this text primarily deals with the biographies of the Jain Tirthankaras-specifically Mahavira, Parshvanatha, Neminatha, and Rishabhanatha-and outlines monastic rules (Sadhuchari) for ascetics. It does not focus on cosmology.
• Uttaradhyana Sutra Uttaradhyana Sutra: Incorrect. This is one of the most important texts of the Svetambara canon, believed to contain the final sermons of Lord Mahavira. Its content focuses on ascetic behavior, ethics, the theory of karma, and the path to liberation, rather than the physical structure of the universe.
• Kalakacharyakatha Kalakacharyakatha: Incorrect. This is a narrative text titled "The Story of the Teacher Kalaka." It recounts the legends associated with the Jain monk Kalaka, particularly his interactions with the Shaka kings (Sahi). It is a semi-historical legend rather than a cosmological treatise.

Key Takeaway:
The Sangrahini Sutra is the specific Jain text among the options that deals primarily with cosmology and the structure of the universe, distinguishing it from the biographical focus of the Kalpasutra and the ethical focus of the Uttaradhyana Sutra.