Let's look at GIRISH PARK.
What task do you think is there? It looks like the kind of place for an inactive RI. The detour choice point?
Just looking at that map and google earth I see a couple of girls schools within walking distance of Girish Park. One is Piyari Charan Girls School and the other was Central Calcutta Girls Academy. Both are apparently high schools. For what it's worth, I found references to a hostel at the first one. The schools would probably match up with the rickshaw carts. I also see a site mentioned as Ganesh Talkies, probably a movie theater. That could be a site for painting Ganesha statutes, but I think it would be more likely elsewhere. You could probably do that anywhere with some open space where you could set up statutes for a day or so.
Looking for pictures of Girish Park, I didn't find much. There was one photo labelled as Calcutta Rescue No. 10 School with small children in a classroom. It also provided a link for http://www.calcuttarescue.org
. That website calls the school the "number one school" and says it is located "in the heart of the red light district in Nimtala, near Girish Park". That group says it provides medical help and education for the poorest and most disadvantaged people in Kolkata and has won awards. If TAR is going to do another day of helping the people of a location they visit like they did in Africa last season, this is the sort of group they might contact. There are probably dozens of similar agencies, so it's unlikely that I've stumbled on the right one. Also, now that I look at the timeline, there doesn't appear to be an extra day unaccounted for in Kolkata. There is an extra day in Varanasi though, so we might want to keep that in the back of minds when promos come out for the Varnasi leg.
Other tidbits culled from Girish Park: The Girish Park Metro Station (if they take the train) is about 11 km from the airport. It has some beautiful looking murals that we might see quickly as teams run from the station. The Latoo Chhatu Babu Bazar near Girish Park has a Bengali New Year Festival in April that has some interesting aerial acrobat activity. A tall pole is set up and the acrobats are suspended from ropes from the top of the pole. The pole is then spun rapidly and the acrobats fly out and throw goodies from bags to the crowd below. That would be interesting as a roadblock/detour but since we've seen no sign of it in the preview, I doubt it will be part of the upcoming episode.