Every grad school requires to submit transcripts from all undergrad and grad instatutions applicant attended including studying abroad.
Personally I am confused with one case. I entered first University just after the high school, but a year after I dropped it and entered another University (a branch of a well-known University that had been opened that very year). The main reason was that the latter University had a program with more advanced and fundamental courses in math and CS and with a researh component as a part of curriculum, and it generally better fit my interests and desires (another reasons were e.g. better professors, better ranking).
I feel that this episode of my life is worth mentioning in my SoP (I preferred to waste a year because I wanted to dedicate my life to science and therefore get better training for this goal). However I'm not sure if I had to get transcripts from that first University even if I just studied there for a year and wasn't satisfied with it's level of education.
Can anyone answer if I am obligated to get and submit this document?