Yes, you will have to take the Shiv Nadar University Scholastic Aptitude Test (SNUSAT) and the Academic Proficiency Test (APT), if applying to the School of Engineering (SoE). So, yes, it will be a 3-hour duration exam for SNUSAT + APT. Depending on the course to are applying to, the APT syllabus will include subjects like Physics, Mathematics, Biology, Chemistry, and critical writing to critical thinking questions.