Answer

Based on the sources I checked, I could not verify any clearly documented Bṛhad-gaccha monk who is specifically described as being active in Sindh. The Bṛhad-gaccha/Vaḍgaccha material I found places its main activity in Gujarat and nearby western Indian centers such as Aṇahilavāḍa, with later lineage activity and inscriptions concentrated there. ( jainqq.org)

Explanation

This is an inference, not a proof of absence: I simply did not find a solid Sindh-specific reference for a Bṛhad-gaccha monk in the sources I checked. By contrast, other Śvetāmbara lineages are explicitly linked to Sindh in the sources I found—for example, Kharatara-gaccha tradition mentions Jinadatta Sūri’s mission in Sindh, and another source notes Achalgaccha leaders traveling across Sindh, Marwad, and Kachchh. ( philtar.ac.uk)

Takeaway

So the safest answer is: no clear evidence found for Bṛhad-gaccha monks in Sindh, though Sindh was definitely active in Jain monastic history through other gacchas. ( jainqq.org)

If you want, I can next look for specific Bṛhad-gaccha ācāryas and check one by one whether any of them had a Sindh connection.