Best of Luck Nikki

Dolly moves her study date with a cute boy, Ritesh, from the library to home because she has to help Avatar take care of Nikki while Himani returns to work. Avatar injures himself falling down the stairs, so Rohan must take him to the hospital where Himani works, leaving Dolly to watch Nikki.

Dolly encourages her parents to go out while the kids take care of the baby. Rohan flirts with a cute girl, Punam (Shivani Joshi), while minding Nikki--and accidentally brings the wrong baby home. After a failed search, the kids go to the restaurant to tell their parents--and find Nikki sitting with the cute girl's family a few tables over.

Dolly discovers that she has an Narendra Tauji (English: uncle her father doesn't speak of); she visits him and they go to a cricket game, where she realizes why they never got along. Sunny and Rohan try to make money modeling Nikki for a baby-store ad.

Himani pressures Dolly to be in the school play, "Dinku the Donkey", and she gets the part despite trying to blow the audition; a baby basketball match is set between Popi's nephew and Nikki.

Roli Aunty agrees to bring her dog inside if Avatar cuts down a tree, but Dolly and Rohan stage a sit-in to save their childhood tree-house. Avatar wages war against his disobedient kids while Himani gives them her support.

Dolly is annoyed that her best friend Pam has become “texting buddies” with Himani, so she attempts to bond with Pam’s boring mother. Sunny and Rohan mistakenly believe that Roli aunty has killed her husband, so they go to Roli aunty's house to investigate.

With a fifth Singh child on the way, Himani demands a larger house. Dolly and Ayaan audition for "Romeo and Juliet" at their college; Ayaan gets the lead opposite a school trustee's daughter who has a crush on him. Sunny and Roli Aunty pull an escalating series of pranks to see who gets the last laugh. When the family is almost done packing, Himani reminisces and tells Avatar that she wants the family to stay in their home.

The basketball team blame their losing streak on Dolly and Ayaan's relationship, so they fake a breakup in hopes the team will relax. Sunny starts acting on his best behaviour when he thinks his parents are considering sending him to a boarding school, a misunderstanding they do nothing to clear up.

Himani convinces Pam's mom to throw her a baby shower, but the shower takes an unexpected twist when Nikki blurts out all the horrible things Himani said about her guests, making them angrily leave. Rohan and Sunny compete to go to a cricket match with Avatar.

Dolly makes an excuse to go to a graduation party with Ayaan. Rohan asks the flower-delivery girl to be his date, and she invites him to her graduation party--which is at her parents' house as she is learning through correspondence; Avatar goes to the doctor for a check-up and overhears the doctor speaking about another patient named Singh.

Himani overhears through the baby monitor that Dolly and Ayann have been secretly rehearing the play Dinku the Donkey!. Dolly got the lead role and did not want Himani to steal the spotlight. In the end, Himani stands in for a cast member who broke a leg. Meanwhile, Avatar desperately wants to fix a fuse in a gorilla cage to prove to Sunny that he's cool.

Himani and Avtaar vote on baby names for the fifth Singh child. Dolly is eager to find a quiet place to study for her final exam. The parents overhear Sunny expressing anxiety about being forgotten when new baby is born, and try to make up for lost time that they did not spend with Sunny.