"Most of the tests are normal. He is in hospital for observation " the doctor added.
He is likely to be discharged on Saturday IGMCH Medical Superintendent Janak Raj said.
The 84-year-old Congress leader who attended the assembly on Thursday was suffering from viral fever and hospitalised at the IGMCH late on Thursday.
The six-time Chief Minister had complained of throat infection his family said.
--IANS vg/in/sed