"The doctors will tomorrow check his (Uddhav's) medical parameters and will take a decision on his discharge," they said.
Uddhav underwent angioplasty at Lilavati Hospital in suburban Bandra on Friday for removal of blockages in his arteries.
It was widely reported that 52-year-old Sena leader will be discharged today.
"He will be discharged tomorrow. However, we do not know why he is asked to be in the hospital for one more day," the sources said.
Meanwhile, a text message to Uddhav's personal secretary Milind Narvekar about the discharge elicited no response.
