When Jay comes back from Sialkot for final kidnap, there is a cement or grain sack hanging in background with Hindi printer on it.
When Jay and Samira rent a taxi to take them up to Wagah Border to get into India, there is a shot where the car is traveling through moderately thick fog before switching lanes and coming to a stop at the side of the highway. If you look closely, it appears the car is moving in a weird pixelated manner while emerging from the fog as opposed to coming in smoothly.
When Jay (Dev Patel) is scoping out Samira's house in Younganabad, Pakistan, he stops for a moment to look around a wall. On the wall is what looks like a small banner/poster that's posted upside down. A single alphabet written in Devanagari (Hindi) script is visible on it. In Pakistan, the alphabet would be in Urdu.
Jay and Samira go to sell one of Deepesh's diamonds because they are allegedly broke. But Deepesh has just paid Jay $35,000 for his role in kidnapping Samira, so they have plenty of money.
Radhika Apte's accent is all over the place. Sometimes she sounds like she's from London, and then it's a generic possibly American-English accent, and half the time she speaks like someone from South Asia speaking English in a fake accent.