Section 7(h) in The Prevention Of Cruelty To Animals (Slaughter House) Rules, 2001
(h)Screens and Insect control .-All windows, doorways and other openings that may admit flies shall be equipped with effective insect and rodent screens and 'Fly chaser' fans and ducts or air curtains shall be provided over doorways in outside wall of food handing areas that are used for dispatch or receiving;
