Question

The Akshardham Temple, shown above, is a historic Hindu temple in New Delhi. As of 2010, over 80% of the population in __________ followed the Hindu faith

Answer 1

The correct answer is - India.

Over 80% of the population of India follows the Hindu faith. Unlike the western countries, or the East Asian countries, were less and less people are followers of the traditional religions of their respective countries, in India, people are still very religious and superstitious, and the Hindu religion is actually experiencing increased number of followers, though predominantly in one country. The second largest religion in India is thee Islam with around 15% of the population as its followers, and it is mainly based in the northwest of the country.

Answer 2

New Delhi is in India, so I think that the question is also asking in which country New Delhi is (as in: in which country is this temple? hint, 80% of people there are Hindus).

And India is the correct answer!
The nest biggest religion in India is Islam with around 15% of the population.