A Diploma in Schooling from the US with AP (assuming AP refers to Advanced Placement courses)  likely would not directly qualify you to appear for NEET (National Eligibility cum Entrance Test) in India.

NEET has specific science subject requirements for eligibility. These typically include Physics, Chemistry, and Biology (or Zoology and Botany) at the 10+2 (higher secondary) level from a recognized board.

A Diploma in Schooling might not be equivalent to the Indian 10+2 standard, which is the basic eligibility for NEET.

https://medicine.careers360.com/neet-college-predictor?utm_source=qna&utm_medium=neet_cp

I hope it helps!