New Delhi: After battling for life at the All India Institute of Medical Sciences (AIIMS) for the past over 60 days, two-year-old battered baby Falak died late on Thursday of cardiac arrest, a doctor said.

"The baby died of cardiac arrest. She suffered cardiac arrest at 9 p.m. and was declared dead at 9.40 p.m," Deepak Agrawal, assistant professor neurosurgery at AIIMS, said.

"She was doing quite well for sometime. But today (Thursday) we observed some fluctuations in her heart rate," he added.

According to Agrawal, the baby's heart had weakened due to two previous cardiac arrests. "The atmosphere is very grim in the hospital because all the staff was emotionally attached to her," he added.