If you go around 630 pm you will see some local devotees. Also, at 7 pm you will be able to attend aarti which takes around 10 mins or so but a good experience and then may be you can ask any young adult for tour or any additional information
You can request at the information desk for help.
Never seen any tour but they have some good posters for educational purposes in the hallway. Try out Indian food in there cafe also.
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