My visit in India spanned one weekend, and I took the opportunity to visit Agra to do some sightseeing.
On the three hour trip from New Delhi to Agra, we stopped at a number of security checkpoints. At these checkpoints, one would often find people with bears and monkeys on leashes. If their owners saw you take a picture, they would come and ask you to pay for the photograph. My guide said that I should just wait until we were about to clear the checkpoint before taking a picture, and I wouldn't have to pay anything.