I was in Vellore this summer for 4 weeks. I did 3 weeks of Pediatric Surgery and a week of General Pediatrics. The day to day depends on the department mainly, and it seems like most students rotate through several departments while they are there. Some departments really like teaching and will try to involve you more in patient care than in others.
I took the first bus in from CMC campus (the main campus and the hospital are NOT close in distance but there are several free shuttles throughout the day) around 8 o'clock and usually worked until 5.
Not sure what else you'd like to know about the day to day...?