Mumbai, April 30 -- Two firms have responded to the Brihanmumbai Municipal Corporation's (BMC) tender to concretise 212 roads in the island city. Both APCO InfraProjects Ltd, which has experience in the construction of state and national highways, and NCC Ltd, which is currently engaged in road concretisation in the western suburbs, have submitted their bids, and the winning bidder is likely to be chosen within a week. The allocation of the work, however, will take place only after the model code of conduct is withdrawn, said officials....