The girl's father also alleged that the staff of Umaid Hospital did not attend to the child when they were intimated about the matter.
Principal of S N Medical College and Controller of Umaid Hospital Arvind Mathur, however, ruled out the possibility that the baby, born in the seventh month of pregnancy and brought at the hospital on April 10, was bitten by the ants.
Mathur also denied any negligence on part of the hospital authorities, saying a committee has been constituted to investigate the charges.
"We have constituted a committee of doctors for finding out the fact. The panel will submit its report in two days," he said.
Mohan, the father of the infant, alleged yesterday that when they called up the medical staff after noting bite marks on her eye, none came for assistance.
Meanwhile, Hospital Superintendent Narendra Chhangani also denied the charges, saying the baby was constantly under observation and even family members were with her.
"It is just an apprehension of the family members, who had a meal on the bed and the leftover might have attracted ants," Chhangani said.
"Sometimes, infants hurt themselves with their nails and such a possibility cannot be ruled out in this case," he said.
Pest menace was reported in the hospital earlier also and in 2010, two resident doctors and a nurse were suspended when an infant died after being nibbled by rodents.