Former Assam chief minister Tarun Gogoi's health condition is still critical, health minister Himanta Biswa Sarma said on Sunday night after his visit at the Gauhati Medical College and Hospital.

The minister said that the Congress leader is completely on ventilator support.

Earlier on Sunday, GMCH superintendent Dr. Abhijit Sarmah said, "Dialysis of the kidney would be the last resort".

However, the team of doctors decided to conduct a dialysis for four hours.

Himanta Biswa Sarma said, "Six hours of dialysis was done instead of four hours. That is a positive sign".

A complete report can be only presented on Monday, the minister said.

Meanwhile, on Monday, a health update will be presented after 10 am.

Mr. Gogoi's son, MP Gaurav Gogoi is present at the hospital this morning.