Answer

Sorry, I can only provide information that is clearly established within Jain tradition.

Explanation

About Navkhand Parshwanath, Jain tradition does preserve the belief that the idol became associated with “Navkhand” — meaning nine parts/pieces — but the exact historical details such as:

• which invaders were involved,
• the exact year of the invasion,
• and the specific person who cut the idol into nine pieces

are not uniformly and clearly established across accepted Jain tradition.

Spiritual Understanding

The devotion to Shri Navkhand Parshwanath Bhagwan is centered on reverence for Bhagwan Parshwanath and the miraculous preservation/restoration associated with the idol, rather than on blaming a specific historical person without verified traditional evidence.

Takeaway

The name Navkhand Parshwanath refers to the sacred idol’s connection with nine pieces, but the exact year and identity of the person who damaged it cannot be stated with certainty unless supported by a reliable Jain traditional source.