36-year-old Sawant was admitted to the P D Hinduja Hospital on July 12, 2006, with severe head injuries.He is survived by wife Priti and a daughter, who was born when he was in a vegetative state.
"He was in deep coma for about two years and then his condition gradually improved into a semi-conscious state where he would understand simple commands," Dr B K Misra, consultant neurosurgeon at P D Hinduja Hospital said in a statement here.
Sawant had a sudden respiratory arrest for which the CPR team tried to conduct all resuscitation measures.
"In spite of all resuscitation measures, Parag could not be revived and was declared dead at 6.54 AM today. He died because of cardio respiratory arrest and most likely possibility of immediate deterioration could be pulmonary embolism," Misra said.
Nearly 188 people were killed and 817 others injured in the 7/11 Mumbai serial train blasts.