“Chattari Mangal Path” (चत्तारि मंगलं) is not a modern composition with a known single author.

• It is an ancient Jain Āgamic sutra, traditionally called “Chattāri Maṅgalaṁ Sūtra”.
• Like the Navkār Mantra, it is considered part of the canonical Jain scripture, coming from the teachings of Bhagwān Mahāvīr, preserved and arranged by his Gaṇadhars and later Āchāryas.
• Therefore, in Jain tradition it is usually described as “Āgamic / traditional”, not as the work of any one named poet or ācārya.

So, if someone asks “Who wrote Chattari Mangal Path?”, the accurate Jain answer is: It is an anonymous traditional Jain sutra from the Agams, not attributed to a specific human author.

You can read more here