The requirement for a principal's signature on the APPGECET application form may vary slightly depending on the specific year and official guidelines.  The most reliable source for application form requirements is the official website of APPGECET. Look for sections on "Application Process" or "Important Dates & Instructions". The website should clearly state whether a principal's signature is mandatory.  If the website information is unclear, consider contacting the APPGECET helpline number (if available) and inquire about the signature requirement.

While not a definitive answer, in many entrance exams, a principal's signature on the application form is not mandatory. However, it can sometimes be considered a "good practice" to ensure the authenticity of the application.

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