Chandra Kali was at the time living in the house of his father-in-law. He was thinking of introducing the worship of a common god, jahbillah.com ON THE ORIGIN AND HISTORY OF TRINATH WORSHIP
Unfortunately, I couldn't find a direct link to a PDF story of Trinath Mela in English. However, I can guide you on how to search for it:
The museum has digitized several booklets, including "Fairs and Festivals of Tribal Odisha" (English edition). Look for their digital library section where you can download PDFs for free or for a nominal fee.