INDIA bloc leaders gathered at Jantar Mantar here on July 30 to demand the release of Delhi Chief Minister Arvind Kejriwal amid his declining health and hit out at the BJP-led Centre for "suppressing" the voice of opposition. They also blamed the Centre for obstructing the work of the Delhi government, therefore leading to the recent incident in Rajinder Nagar where three students died after getting trapped in a flooded basement of a coaching centre. Slogans of "Bharat Mata Ki Jai" and "End dictatorship" were raised during the protest rally called by the AAP.