Naina (Deepika Padukone) is a shy and nerdy medical student. When she runs into an old classmate, Aditi (Kalki Koechlin), she realises that she wants more from life. She makes an impulsive decision to go with Aditi on a trek in the Himalayas. During the hike, she reconnects with other former classmates, Kabir (Ranbir Kapoor) and Avi (Aditya Roy Kapur). Kabir teaches Naina to laugh and play, and she falls in love with him. However, she doesn't reveal her love, as she wants Kabir to follow his passion of traveling. Eight years later, they meet again in Udaipur for Aditi's lavish wedding. Kabir and Naina's love is rekindled. Will their love work out this time? (CBFC U/A DIL/2/96/2013-MUM)