The Pakhui Wildlife Sanctuary is located in Arunachal Pradesh, which is option 1 on the given list.
Arunachal Pradesh is a state in northeastern India that is known for its rich biodiversity. The state is home to a number of wildlife sanctuaries and national parks, including the Pakhui Wildlife Sanctuary.
The Pakhui Wildlife Sanctuary covers an area of 862 square kilometers and is situated in the eastern part of Arunachal Pradesh, near the border with Assam. The sanctuary is located in the East Kameng district of the state and is surrounded by the Pakke Tiger Reserve and the Eaglenest Wildlife Sanctuary.
The Pakhui Wildlife Sanctuary is home to a wide variety of flora and fauna, including tigers, leopards, elephants, barking deer, sambar, and many species of birds. The sanctuary is also known for its scenic beauty, with lush forests, rolling hills, and winding rivers.
In conclusion, the correct answer to the question is option 1: Arunachal Pradesh. The Pakhui Wildlife Sanctuary is located in this state and is home to a diverse range of flora and fauna.