Former President Pranab Mukherjee, whose health condition deteriorated after he developed a lung infection, is showing signs of slight improvement, the Army Research and Referral Hospital said on Thursday.

Former Prez #PranabMukherjee, whose health condition deteriorated after he developed a lung infection, is showing signs of slight improvement, Army Research & Referral Hospital said.

He has been hospitalised for past ten days & is on ventilator support following a brain surgery. pic.twitter.com/nsoqtk52Q5