"He is still not out of danger and is critical. He is being put on ventilator and removed intermittently. A team of experts are constantly monitoring his conditions," Apollo Hospital sources.
According to doctors, Hasan's response to medication is slow and he is not able to recognise his family members.
"Hasan is a diabetic and also under undergoing dialysis. Thus, extra care is being taken and he is given balanced medication," said the source.
The accident occurred when the vehicle in which he was travelling to Mewat reportedly collided head on with a dumper.
The leading academician had sustained severe head injuries and was operated upon by a team of neurosurgeons at the hospital.
Hasan had served as the vice-chancellor of Jamia Millia Islamia University between 2004-2009.