India Post — Hp 406 g1 mt business pc

Address: Thrissur, Kerala, 680613

Dear Team,
The keyboard attached to the newly purchased HP 406G1 MT business PC is not working. The lights in the keyboard is also not up. We have tried changing to another USB slot, connecting to another PC, but still it is not working.
PC serial no INA604XG7W. Installed at Kandassankadavu Postoffice, Thrissur, Kerala.
The product is under warranty period. Pls do the needful for replacing the defective item urgently.