Call them and they can organize the a group tour.
Schools and groups (10+ people) are welcome to visit the BAPS Shri Swaminarayan Mandir. Advanced reservations are required for school and group visits in order to make your visit comfortable. Visits are also entertained on weekends and holidays subject to available visiting time slots. In order to schedule a group tour, please complete and submit the Tour Reservation form
The temple leaders are very organized. Please call them and discuss your group visit requirements
They do group tours there regularly
Even if you go by yourself, it will be fine. There are a couple of things though. They don't allow cut sleeves for girls. Ask everyone to wear a decent attire. Also pictures are not allowed inside. But will be fun abd really good place to show Indian architects traditional work. Have fun!!!
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