The plane carrying the girl landed at the Changi International Airport at 7.30 AM (5 AM IST), the Indian High Commission in Singapore said, confirming the girl's arrival.
The decision to shift the girl was taken at the highest level of the Indian government.
On December 16, the girl was gang-raped and brutally assaulted in a moving bus and was undergoing treatment at a hospital in Delhi.
The girl, who continues to remain in a critical condition, remained on ventilator support during most part of her treatment in Delhi.