Ankhiyon Ke Jharokhon Se was a love story which left us on a tragic note when a young Arun Mathur (Sachin) was left alone after his soulmate Lily Fernandes (Ranjeeta) dies to cancer, leaving him in immense pain.
Now after 32 years, 'Jana Pehchana' reintroduces Arun Mathur, who has battled the agony of his past and has risen to be a successful entrepreneur and philanthropist, motivated by the memories of his beloved Lily to do noble work and touch people's lives. Life has always been one of struggle and loneliness for Arun, who could never let go of his past. One day like a breath of fresh air walks in Asha Dayal (Ranjeeta), a successful writer who is on a mission to write Arun's biography.
Asha lands up at Arun's office, in spite of being repeatedly warned that he is not an easily approachable man and would never grant her permission to write his biography. But when Arun sees Asha's face, he is stunned as he sees a shocking similarity between Asha and Lily's face, leaving him speechless. What is life trying to tell him? Arun is uncomfortable staring into the face of his past, Asha's determination, that gets him to agree to her request and thus they begin their journey of documenting Arun's life.
After having several meetings, Asha finally brings up the topic of Arun's personal life and asks for Lilly's photo. Arun hesitates as he knows that Asha is unaware of her uncanny resemblance to Lily. But fate has other plans for them, as Asha accidentally stumbles across Lily's photo. Shocked and consumed by guilt, Asha become aware of the pain she has unknowingly put Arun through all along. Hence, she decides to discontinue writing his biography. Arun is taken aback by Asha's stance.
What happens after this? Does Arun convince Asha to continue with the biography? Does Asha get convinced? How do they with each other's past?