Lalbaug – A big crack in the Lalbaug flyover here created quite a sensation on Wednesday. A car driver had informed about this crack to the control room. The civic and MMRDA authorities immediately started repairing the crack. Meanwhile, the flyover is being closed for transportation of heavy vehicles for two days. This flyover was inaugurated in the year 2011 and potholes here were filled a few months ago. It has raised question marks on the earlier repairing work.