Samidha goes to Karan's house in the middle of a rainy night, but at about 1hr 22 mins, when she's been in the house only five minutes, bright sunlight is visible through the windows.
During the gathering at Sam's house, she asks her father whatever happened to a particular family that used to come to their parties. Later in the film, when investigating that family's house, she mentions she was already informed on how they died.