Fund house is just another name for an Asset Management Company (AMC). Fund house is used more commonly by people when they are referring to an AMC. Fund house and AMC can be used interchangeably. The fund house or AMC is the investment manager of the fund and carries out all the investment related activities of the Mutual Fund, like purchase and sale of securities in the portfolio of various Mutual Fund schemes launched by the Mutual Fund.
The fund house provides professional investment management services to its investors, by hiring talented and experienced fund managers to manage the pool of investor money on behalf of the investors