Fire brigade and NDRF personnel carrying out a search and rescue operation following a building collapse at Ghatkopar in Mumbai on Tuesday. PTI Photo

A day after a four-storey building collapsed in suburban Ghatkopar in Mumbai killing 17, the Congress on Wednesday blamed the Mumbai's civic body for the mishap and said that both the Shiv Sena and the Bharatiya Janata Party, who run the Municipal Corporation of Mumbai, must be held accountable for the accident.