The correct answer is option 1: Sikkim. Pakyong Airport is indeed located in Sikkim, a state in northeastern India. Sikkim is known for its scenic beauty, mountains, and Buddhist monasteries. Pakyong Airport is the first and only airport in Sikkim and was inaugurated in October 2018. It is situated near the town of Pakyong, approximately 30 kilometers south of Sikkim`s capital city, Gangtok. The airport serves as an important transportation hub, providing air connectivity to Sikkim and facilitating tourism and economic development in the region. It is a small airport with a single runway and is operated by the Airports Authority of India.