CSIR NET Earth, Atmospheric, Ocean, and Planetary Sciences exam held on 28 February 2025 comprised 200 questions across three parts—A (General Aptitude), B (subject-based MCQs), and C (analytical/numerical subject questions)—to be completed in 3 hours. The overall difficulty was moderate to difficult, with Part C being the most challenging and time-consuming. Key topics included atmospheric science, oceanography, geomorphology, geophysics, and Earth’s interior processes.