A case has been registered against Nagarjuna Construction company (NCC), five of its officials and two of Bangalore Metro Rail Corporation Limited (BMRCL) in connection with the collapse of an under-construction metro pillar here, which left a woman and her toddler son dead.

NCC is named first accused (A1), followed by its officials. A BMRCL deputy chief engineer and executive engineer are A7 and A8 respectively, police sources said.