From what I recall they asked for roughly 50% deposit at the time of booking. I don't have any photos. Will look around the net for you for photos. You pay according to hour and I think...maybe I am wrong but minimum is 3 hours booking plus. During busy seasons they limit weddings to 3-4 hours to get several weddings in one day and their people urge you to get rid of your guests when time is running out - quite a funny scene!! Evening slots run out first then afternoons and around Sep' they have lunch slots left. So book ahead. (But cheeky lot always save slots for certain weddings e.g. staff)
Cost per person can vary from Rs 600/- to Rs 3000/- it all depends on where your catering from. Of course prices get higher than that too. Using the hotel's restaurants can be very expensive but if you do this you can limit your guests. Some would ask for Sakutu, one of the best Japanese restaurants which is on the upper floor. If you order food from there for your wedding it can be very pricey! Their buffet is cheaper.
Then price for decor in the hotel is seperate, flowers etc.