Chembur- Chembur's Shell colony poses a threat to the motorists. This is due to the open manhole which lies in the center position of the road. 8 days back, the lid of this manhole broke down & it is still not repaired by BMC. MNS president of Vahtuk Sena Nitin Nandgaonkar complained to BMC officials but no work is done by the latter. Seeing the threat, residents came forward and placed wooden bamboo bearing the red flag in the manhole as a danger sign.