Homeshop18 — winner of home shop 18.com online shopping lucky draw contest

Address:

yashaswini salian shree devi nilaya kalkar house mangalore, 575007

For the 2nd time i have recived the coupun from home shop 18.com its mentioned as certificate of acheviment. When i called customer care they told me that government tax processing fees towards the redemtion of the prize money will be born by the winner and charges should be paid in advance they use to tel. So please tell me whether this is fake bcoz itseems like to be fake and if it is fake please take neccesary action against this issue by this fake it wil effect to homeshop 18.