Where an investigation is ordered by the Central Government in pursuance of clause (b) of sub-section (1) of section 210, or in pursuance of an order made by the Tribunal under section 213, the Central Government may before appointing an inspector under sub-section (3) of section 210 or clause (b) of section 213, require the applicant to give such security not exceeding twenty-five thousand rupees as may be prescribed, as it may think fit, for payment of the costs and expenses of the investigation and such security shall be refunded to the applicant if the investigation results in prosecution.