Answer from Debi Goenka, who heads Mumbai-based environmental NGO Conservation Action Trust (CAT):
Private vehicles are only allowed to ply from the main gate at Borivili to the Kanheri Caves, which are not part of the notified National Park. We have tried to get the forest dept. to introduce shuttle buses, but since these are not financially viable, the forest dept. is not interested.
Re alcohol, this is strictly prohibited, and complaints should be immediately made to the SGNP Park director, Mr. Sunil Limaye. Try and get pics of the offenders and their vehicles, if possible.
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