Girls constituted a majority of the victims of the gruesome killings of children at Nithari village here, it was revealed today as the state government came under mounting pressure to hand over to the CBI investigation of the case that has evoked national outrage. Post-mortems of the 17 skulls and other bones discovered last week showed that 11 of those killed were girls, Chief Medical Superintendent of the Government Civil Hospital here Vinod Kumar told reporters. Kumar said going by the length of the hair on the skulls, they have been able to ascertain that 11 of the 17 skeletons found belonged to girls. — PTI