1
Free Radicals
Oshin has a plan to propose to Tara, but just as he's about to do so, Tara reveals that her long-distance boyfriend, Ankush, is coming to live in the same town.
2
Catanation
Luck doesn't seem to be on Oshin's side, as Ankush arrives from Rishikesh for his preparations. To make matters even more complicated, Ankush's father happens to be best friends with Aayush's father, who used to be Oshin's roommate. This connection leads to Ankush moving in with Oshin and Aayush.
3
Electrophilic Substitution
Oshin becomes friends with Ankush and goes with him on his dates with Tara. With Aayush's assistance, Oshin records something Ankush says, which implies that Ankush is only interested in Tara's appearance and wants a physical relationship, with no long-term plans. Oshin then plays this recording for Tara to hear.