Answer

No. In Jain tradition, the soul of Bhagwan Neminath of the previous Chovisi and the soul of Bhagwan Adinath / Rishabhdev of the current Chovisi are not the same soul.

Each Tirthankar is a distinct individual soul who attains Tirthankar-nām-karma and later achieves Kevalgyan and Moksha.

Explanation

In every time cycle, there are 24 Tirthankars, known as one Chovisi.

Bhagwan Adinath, also called Rishabhdev, is the 1st Tirthankar of the current Chovisi.

Bhagwan Neminath is the 22nd Tirthankar of the current Chovisi. There may also be Tirthankars with same or similar names in other time cycles, but that does not mean the same soul repeats as another Tirthankar.

In Jain Dharma:

• A soul that attains Moksha becomes a Siddha.
• A Siddha never returns to worldly birth.
• Therefore, one liberated Tirthankar soul cannot be reborn as another Tirthankar in a later Chovisi.

Spiritual Understanding

Every Tirthankar shows the same path of liberation, but each is a unique, perfected soul. Their teachings guide us toward the same goal: freedom from karma and attainment of Moksha.

Takeaway

Bhagwan Neminath and Bhagwan Adinath are different souls. A liberated Tirthankar soul never takes birth again.