Bihar Professor Invents Eco-Friendly, Non-Toxic Rat Deterrent Machine

• Professor Manendra Kumar of BRABU, Muzaffarpur, invented 'Ultrasonic and Scent Based Rodent Deterrent Device'.
• The device uses ultrasonic sound (20-60 kHz) and natural essential oils (peppermint, citronella) to repel rats.
• It's a safe, non-toxic, and eco-friendly alternative to poisons, sprays, and cages, registered with a UK design patent.
• The machine protects homes, warehouses, and fields, preventing an estimated 40-45 thousand crore rupees in annual damage.
• Operates on low power, battery, or solar, creating a 20-30 feet rat-free zone, with an estimated cost of 800-900 rupees.

Why It Matters: A Bihar professor developed an innovative, eco-friendly machine to safely deter rats, offering a humane solution.