An Indian naval ship, INS Vindhyagiri collided with a foreign merchant vessel at the Mumbai harbour on Sunday resulting in fire on the naval ship. Coast Guard officials said, the incident took place at around 4.45 pm, when the family members of the Navy personnel were celebrating ‘Day at Sea” on board INS Vindhyagiri. The officials said, there were no reports of casualty or oil spill. They said, the cause of the mishap is yet to be ascertained. INS Vindhyagiri was returning to the dockyard, while the merchant vessel was leaving Mumbai harbour when the two ships collided.