Hester Biosciences Ltd, incorporated in 1987 by founder Rajiv Gandhi, operates in the animal health care and veterinary vaccine industries. The company manufactures and distributes vaccines and health products for poultry and livestock through four main business segments: Poultry Vaccines, Poultry Health Products, Animal Vaccines, and Animal Health Products. Its product range includes poultry and animal vaccines, health products, seroprofiling kits, diagnostic labs for poultry flocks, and mastitis control programs for cattle. Hester Biosciences serves markets in India, Nepal, Tanzania, and over 30 other countries. The company holds approximately 75% market share as the world’s largest manufacturer of the Peste des Petits Ruminants (PPR) vaccine, about 70% share in India's Goat Pox vaccine market, and is the second largest poultry vaccine manufacturer in India with nearly 35% market share. Its ventures include partnerships with the Bill & Melinda Gates Foundation, GALVmed, Golchha Organisation, and Novapharma.