Tribal farmers in the northeast of India have increased their income by 3 to 4 times, thanks to Symbiotic Foods Pvt. Ltd. (SFPL) which set up a social business in the pig rearing value chain. Pig rearing is a traditional source of income for the farmers. However, usually they do not earn a fair price due to low quality and an unfair system. SFPL tries to positively influence this by introducing improved piglets and by providing feeds and veterinary services to farmers. It also provides a buy back arrangement.