The Tirumala Tirupati Devasthanam has blacklisted AR Dairy and initiated legal proceedings against it for allegedly supplying adulterated ghee to them, the temple board’s executive officer J Syamala Rao said. The other firms that supplied ghee include Premier Agro Products Private Limited, Kirpa Ram Dairy Private Limited, Vaishnavi Dairy and Sweets, and Parag Milk Foods, TTD officials who spoke to …