New Delhi, Former president Pranab Mukherjee’s vital and clinical parameters are stable, while his condition continued to be critical on Monday, Army’s Research and Referral (R&R) hospital said here.According to a hospital bulletin, the former President continues to be on ventilatory support and is being closely monitored.Mr Mukherjee was admitted to the hospital a week ago and had to undergo an emergency life saving brain surgery after discovery of a clot.He had tested positive for COVID-19 and continues to be under intensive care.