The most accessible legal source. Eros Now, which owns the digital rights to many Farhan Akhtar films, has uploaded Karthik Calling Karthik on YouTube. It is often available for or as part of the YouTube Movies rental/purchase program.
The story revolves around Karthik Narayan (Farhan Akhtar), a lonely, introverted man who lacks self-confidence and is overlooked by his peers, belittled by his boss, and unnoticed by Shonali (Deepika Padukone), the woman he silently adores. Feeling trapped in his mundane and underpaid job at a construction company owned by Mr. Kamath, he is on the verge of giving up. One night, his phone rings, and on the other end is a voice claiming to be Karthik himself. This mysterious caller offers to change his life for the better, turning him from a loser into a confident, successful man who finally wins the love of his life. The film's unpredictable plot twist reveals that Karthik suffers from a split personality disorder, and the voice on the phone is a manifestation of his own subconscious. karthik calling karthik vegamovies