Pestam Sagar- Six bikes were set ablazed at Chembur’s Pestam Sagar on Thursday morning. This act was done by an unknown man. Residents got to know about the fire in the morning when they saw the bikes burning. They tried dousing the fire but couldnt save six bikes which got charred in fire. For now, residents have complained against the unknown at Tilak Nagar police station and police are investigating the case.