The `Gandhi Solar Park` is located in New York, at the United Nations Headquarters. This solar park is a joint effort between the Government of India and the United Nations as a part of climate action, symbolizing India’s commitment to using renewable energy.
Option-2, Vladivostok, is a city in Russia, not related to the Gandhi Solar Park.
Option-3, Thimphu, is the capital of Bhutan, again not the location of the Gandhi Solar Park.
Option-4, Houston, is a city in Texas, USA, and is not the location of the Gandhi Solar Park. Only Option-1, New York, is the correct location for the Gandhi Solar Park.