Mumbai: Coming down heavily on Mumbai’s traffic woes, Maharashtra Navnirman Sena (MNS) President Raj Thackeray said India may boast of a 7.8 pc GDP growth, but what use is a booming economy if citizens struggle to even walk safely on the roads, here on Monday. In scathing inaugural address of the MNS Vahatuk Sena conference in Navi Mumbai, Raj took in a bird’ eye-view and took potshots at the city, state and Centre on urban traffic problems, vanishing footpaths, incessant num