Raj often uses a laptop with a camera to keep in touch with his parents, Dr. and Mrs. V.M. Kusepali, who are far away in New Delhi. Later, his parents became more and more authoritarian, and Raj would "take" his parents to Leonard and Sheldon's apartment in the video. In the last episode of the second season, an argument broke out between Mrs. Kousipari and Mrs. Wolowitz, because Mrs. Wolowitz did not believe that there were no steakhouses in mainland India. One funny thing about this play is that Raj often portrays himself as an Indian child from a poor family, while his friends will complain that his father is an obstetrician, drives a Bentley (he protests that it is "rented") and has servants at home. In the episode of Sign Language Matchmaker, Sheldon, as a notary, points out that the Raj family is richer than they thought. His original words were "their family is super rich, and their value is between Bruce Wayne and Shi Gaozhi McDonald's". One of Raj's cousins, Sanjay (Raj said his friends should know him, Sanjay's vest is at AT & amp； Dave from T Customer Service works in the call center, and this person has been mentioned in more than one episode. Raj's parents once again arranged a blind date for him to go back to China to attend Sanjay's wedding. Raj had to do it when the resistance was ineffective. Another cousin of Raj, Venkates, as a professional lawyer, has poor negotiation skills. He admits that he is a "useless thing". Raj has three brothers and two sisters, one of whom is Priya. In the fourth season, she developed a one-night stand with Leonard, because it broke Leonard, Howard and Raj's vows and caused a small quarrel between them. In the second half of the fourth season, Priya fell in love with Leonard despite Raj's objection, but she was embarrassed because she lived with Raj at the same time. In the last episode of the fourth season, Raj moved to Sheldon's apartment because he couldn't stand Leonard having sex with his sister.