Cracking NEET in 1 year from "zero level" (implying little to no prior knowledge of Class 11 and 12 science syllabus) is an extremely challenging task, but not entirely impossible if certain conditions are met. It requires extraordinary dedication, an aptitude for science, excellent time management, and a highly effective study strategy. Factors to consider:

• Definition of "Zero Level": If you have a basic understanding from Class 10 and a good grasping ability, it's more feasible than if you have significant learning gaps.
• Study Hours: You would need to dedicate a significant number of focused study hours daily (potentially 12-15 hours).
• Guidance: Good quality coaching or mentorship can be very beneficial in structuring your learning.
• Resources: Access to the right study materials is crucial.
• Discipline & Consistency: Unwavering discipline and consistency are non-negotiable.

Actionable Insight: If you are in this situation, create a highly structured and intensive study plan. Prioritize NCERT thoroughly. Focus on understanding concepts deeply rather than rote learning. Take regular tests to assess progress. It's a monumental task, so be realistic about the effort required and consider seeking expert guidance.