Is it usual for a degree college to hold on to the original certificates for all three years?

Our daughter has taken a seat at a degree college in the city, and the admission checklist says the original class 10 and 12 certificates and the transfer certificate are to be deposited with the college until the course is completed. I understand they need to verify them. My doubt is whether keeping them for three years is standard or something we can question. She may want to apply for an internship or an exchange programme in between, and those sometimes ask for originals too. For those whose children went through this recently: did the college keep the originals, return them after verification, or keep only the TC? I would like to know what is normal before I speak to the office.