District Election Officer and Collector S. Jayandhi has asked the owners of lodges, marriage halls and hotels in the district to exercise caution and adhere to the model code of conduct in force for the Lok Sabha elections while letting out their space for hire to public. Political personalities must not be allowed to book their space through proxy registration, she emphasised at a meeting with the here on Friday. She asked the lodge owners to maintain the proper records of inmates and guests along with their contact numbers. Any suspicious activities must be reported to the authorities immediately to prevent electoral malpractices, she urged. Insist on marriage invitations if necessary, Ms. Jayandhi told the marriage hall owners.