Former Prime Minister Atal Bihari Vajpayee continued to be in hospital, but doctors attending on him said his condition was stable.
The 83-year-old BJP leader was admitted to AIIMS in New Delhi on August 21 after he complained of giddiness and drowsiness.
AIIMS spokesman Shakti Gupta said the condition of the senior leader was stable and the doctors attending on him would take a decision this evening on whether he could be discharged on Saturday.
A team of doctors, including a cardiologist and neurologist, are looking after him.
Reports of all the tests, including MRI, CT and ECG, are normal.