I too noticed this in my graduate program. However the majority 70% were Chinese, and they did the same exact thing you say. They would come into the lecture ha

I too noticed this in my graduate program. However the majority 70% were Chinese, and they did the same exact thing you say. They would come into the lecture hall early and plan out their seating arrangements for each and every exam. It was clearly noticeable they were cheating. I cant speak to Indian students as there was only one in the entire graduate program.