The Nilgai is an antelope and is one of the most commonly seen wild animals of Central Asia, Northern India, Eastern Pakistan, and several parts of southern Nepal. The mature males appear on like with blush-grey hides which is they are also known as Blue Bulls. The Nilgai is the biggest Asian antelope. It is active during the day and lives in grasslands and woodlands where they feed on grasses, leaves, buds and fruit.