Regarding the India instagrams, they're actually in New Delhi.  It's Agrasen Ki Baoli...TARAus2 had a roadblock there involving men with turbans.  The cluebox and flags there seem legit, and pics from there today show many similary-dressed men in turbans (which isn't a rare occurrence in India, granted)...but my thoughts is that it's TAR:Israel (which I think is filming now) getting ready to be filmed for a switchback of sorts.  I inquired of one of the instagrammers, and paradoxinee has asked another.