Hi Purnima, double coat breeds like Golden do shed a lot. This is very normal. It's not a health issue. I know you must be terrified with hair all over your house. You don't groom your dog. Spend atleast 1/2 hour grooming the dog this will prevent hair everywhere. I'm sure regular grooming itself will make a great difference. Buy a nice comb suitable for golden, they are available in anypet store in the country. If your dog is healthy then the coat will also shine.