What is jinvagni shravan
You may be referring to Jinvani Shravan.
In Jainism, Shravan means listening, and Jinvani means the teachings/voice of the Jina. So Jinvani Shravan means listening to the authentic Jain teachings, scriptures, and the words of enlightened Jain teachers. It is considered the first step toward right understanding, because hearing true Dharma helps develop Samyak Darshan and Samyak Jnana. ( jainknowledge.com)
In simple words: Jinvani Shravan = listening to Jain Dharma with faith, attention, and respect. ( jainknowledge.com)
If you want, I can also explain the arth of Jinvani Shravan in very simple Gujarati/Hindi style.