An apparatus for preparing curd, the apparatus comprising: a housing including: a door for accessing a space inside the housing; a vessel disposed within the housing for holding mixture for preparing the curd; and optionally a plurality of supporters for supporting the housing; and a control unit comprising: a temperature meter with a temperature sensor for monitoring temperature in the space; at least one of a curd sensor and a pH meter comprising a pH sensor dipped in the mixture, wherein the curd sensor monitors electrical conductivity of the mixture and the pH sensor monitors pH of the mixture during fermentation process; a heater for heating the space; an intelligent system, typically a micro-controller, coupled to the temperature meter, pH meter and heater, the intelligent system controlling the temperature within the housing thereby controlling the pH value of the mixture; and a power supply for powering electrical and electronic components.