Rachana's cellphone keeps changing from a Moto G, to a One + One to a Nexus 5 through out the film.
The kid's drawing on the slate is different from what it is when the father sees the slate later. Even lines in that drawing keep changing between shots.
In traffic control room, initially they show the white dressed traffic cop scanning his RFID to get into the building. Later, in one of the scenes, Inspector Nayak(Roger Narayan) barges into the same building by just pushing the door without scanning any ID to get in.