20-year-old Ravi was sentenced by a US judge on hate crime charges for using a webcam to spy on his homosexual roommate Tyler Clementi who later committed suicide, terming his behavior "cold, calculated and methodically conceived."
The former Rutgers University student turned himself in at the New Jersey Sheriff's department yesterday where he was fingerprinted and photographed. He was then driven to the Middlesex County Jail, Sheriff Mildred Scott said.
Convicted in March of spying on Clementi while he kissed another man, Ravi had for the first time publicly apologised for his "immature and insensitive" actions earlier this week.
Clementi's parents, however, rejected his apology as they expressed disappointment over the short prison sentence imposed on him by Judge Glenn Berman.
Clementi had committed suicide in September 2010, days after Ravi had used a webcam to watch him kissing another man.
"As to the so-called 'apology', it was, of course, no apology at all, but a public relations piece produced by Ravi's advisors only after Judge Berman scolded Ravi in open court for his failure to have expressed a word of remorse or apology," the Clementi said in a statement issued yesterday.
They said a sincere apology is "personal" and people convicted of crimes address the victims and their families in court.
"Ravi was given that opportunity but chose to say nothing. His press release did not mention Tyler or our family and it included no words of sincere remorse, compassion or responsibility for the pain he caused," they said.