Price is mentioned on their website. We paid around Rs 1000 ( including vehicle parking ) for a 10 bed Dormitory. You can checkout here bandipurtigerreserve.in/

Camp fire and cooking are both prohibited ( you can literally see wildlife through your window ). There is a shitty restaurant nearby ( just peep into their kitchen and you will know what I'm talking about ). I advise you get your food from home or outside of bandipur ( like gundalpet ).