Finance Minister P Chidambaram said the government will intervene if there is any sign that growth in some sectors of the industry is flagging."What has been done is sufficient to keep the engine of growth running. Demand is going to be created with the money left in the pockets of the consumer. Most of it will be spend on goods and services, which will boost services and the industrial sector," Chidambaram said in a post- budget interactive session with industry associations.On farm loan waiver, Chidambaram said: "It is a one-time measure to keep farmers within the institutional credit system."