Former Union minister and Congress leader V C Shukla,who was injured in the Chhattisgarh Maoist attack,has shown further signs of improvement,but he is still critical and remains in ICU. He has shown further signs of improvement during the last 24 hours. He is still in ICU and remains critical. A team of multi-specialist doctors is taking care of him, A K Dubey,Medical Superintendent of Medanta Hospital,told reporters on Friday. The 84-year-old veteran Congress leader was airlifted to Medanta Hospital in Gurgaon from Raipur on Sunday.