I suppose the Dwarka Temple.
Aksharadham is not the biggest hindu temple because the followers of their deity are not hindus. The biggest hindu temple is probably the Brihadeeshwara Temple in Thanjavvur, Tamilnadu.
They worship in Hindu temples. The biggest Hindu temple is in India, named the Brihadeshwara temple. If you want to know more about Hinduism, go to Google and search it.
The dwarka temple i think
India
MIZORAM
Yes lakshadweep is part of India, where most of the population is Hindu. Though there are many tribes on the small island you can find some Temple.
The Ellora Temples in Aurangabad in Maharashtra, India
From what I know one of the biggest differences in that in a Hindu temple there will be statues of gods that will be worshiped and in a Buddhist temple there will be statues of Buddha who will be revered but not worshiped since he is not a god.
Yes they are most sacred and uppermost cast or creed in Hindu system of cast and work as priest of Hindu temple as they are only permited to touch and maintain Hindu diety statues in temple.
The Sun Temple in Orissa worships the Hindu god, the Sun God. It is in Orissa, India.
Jagganath Puri Temple India
Lingaraja Temple is located at Bhubaneshwar - Orissa. It is a hindu temple dedicated to Harihara another name of Lord Shiva.