In Jainism, Uvasaggaharam usually means the Uvasaggaharam Stotra — a well-known and revered Jain prayer, traditionally associated with Lord Parshvanath.

It is used for:

• devotion,
• protection from difficulties and obstacles,
• remembrance of the Tirthankar’s compassion and spiritual power.

If by “old Uvasaghaharam” you mean an older manuscript/version, it generally refers to an earlier traditional form of the same stotra.

If you want, I can also give:

• the original text,
• the meaning line by line,
• or a simple explanation in English/Gujarati/Hindi.