The Bollywood beauty was in town for the official launch of the website of a non-profit organisation run by Debasree.
"My aunt (Debasree Roy) used to get ridiculed for loving dogs. I do support her cause, " Rani said.
"You all should support her in her endeavour, " Rani told mediapersons after the launch at a city five-star hotel.
Debasree Roy Foundation is primarily dedicated to promoting the cause of birds and animals suffering from lack of care and needless suffering.