Is Flood damage to movable property is insurable?

Technically, it all depends on whether your insurance covers the kind of damage sustained by your car. If your insurance policy covers flood damage, then you can easily claim from the Insurance company. If you read your policy carefully, it will reflect whether or not the movable property is insured and whether or not flood damage is covered. But most likely, even though the property IS covered, you will only be able to claim an amount less than that of which you had spent to purchase the movable property.

I certainly hope you paid the premiums religiously. Otherwise, your policy will be deemed to have lapsed.