Former Uttar Pradesh chief minister Kalyan Singh's condition deteriorated on Friday.
"His blood pressure is low and he's not passing urine normally. He has been placed on dialysis," Prof R K Dhiman, Director, SGPGIMS, Lucknow told ANI.
Singh is on ventilator.
The 89-year-old BJP veteran was admitted to the ICU of the hospital on the evening of July 4 due to an infection and reduced consciousness level. Earlier, he was undergoing treatment at Ram Manohar Lohia Institute of Medical Sciences here.