Ben - you can try RK Photoguide near Majestic bus stop.. They should be having B&W films.. Otherwise these days it is best to source films from other metros [mainly Mumbai / Delhi] or abroad.. In the flickr group I mentioned, we join hands and order films in bulk.. the moderator of the group [Sabir Ahmed] currently has some Fuji Acros 100 in 135 and 120 sourced a month back.. try out and enjoy ..