A government hospital in Calcutta has been accused of negligence after the deaths of 30 babies in the last four days.
The parents of the dead babies said staff at the BC Roy Post-Graduate Institute of Paediatric Sciences did not give their children the correct medicine and were guilty of mismanagement.
The hospital said it did all it could do to prevent the deaths. It said there was a spike in admissions of ill babies who could not be saved.
"Doctors always try their best but sometimes patients cannot be saved as their condition is very bad," health department task force chairman Dr Tridib Banerjee told NDTV. "There is not a single case of negligence."
The BBC reports the hospital provides free health care to poor families.
It is the largest paediatric centre in eastern India. In 2011 it was cleared of negligence after the death of 18 babies in two days.
As a result of that inquiry, a new neo-natal unit was installed to provide better treatment.