Answer

If you mean the Abu/Delwada (Dilwara) Jain tirth, its major jirṇoddhār/repair is traditionally attributed to Pruthvipāla (Pṛthvīpāla), a descendant of Vimal Shah. ( jainsite.com)

Explanation

The original temple at Abu was built by Vimal Shah, and later Pruthvipāla is said to have added the mandapa and carried out extensive repairs. Some Jain sources place this work around the 12th century. ( jainsite.com)

Spiritual Understanding

In Jain tradition, preserving a tirth through repair and care is considered a meritorious act, because it helps protect a sacred place for future devotees and keeps the path of devotion alive. ( jainsite.com)

Takeaway

So, the common answer is: Pruthvipāla. ( jainsite.com)