JL50 (1000) Timeline Explained – Every Event in Order

Professor Mitra hijacked JL50 in 1984 to test his time travel theory. Using coordinates from Project A, he attempted to traverse a wormhole in the sky. However, due to a miscalculation, the plane jumped 35 years into the future, crashing in present-day West Bengal. This explains why a plane missing for decades suddenly appeared crashed.

• jl50
• time travel
• plane crash
• 1984
• 2019
• professor mitra
• wormhole

Project A was a secret research project tracing back to Emperor Ashoka, who after the Kalinga War compiled dangerous scientific knowledge. Mitra's father worked on time travel research but funding dried up after independence. Mitra continued the work, believing he could access a wormhole to travel through time. He hijacked JL50 to prove his theory worked.

• project a
• time travel
• ashoka
• professor mitra
• wormhole
• 1984

Shantanu agrees to travel back because Subroto Das explains that preventing the hijack would erase the crisis from existence. The hijackers' demands would never arise, the plane wouldn't crash in 2019, and the two survivors (Bihu and Mitra) wouldn't be stranded in the future. Shantanu chooses to risk the timeline to save everyone involved.

• shantanu
• time travel
• 1984
• subroto das
• business class
• jl50 hijack

In August 1984, Shantanu, Das, and Bihu arrive at a factory godown where Mitra is preparing to board JL50. They engage in a tense shootout and successfully prevent Mitra from boarding the plane. With the hijack never occurring, JL50 never disappears and never crashes in 2019.

• 1984
• factory godown
• shootout
• mitra
• hijack prevented
• altered timeline

In the altered timeline, Shantanu discovers he was abandoned at an orphanages as a newborn. It is revealed that Bihu Ghosh is his biological mother. She had given birth to him out of wedlock and was told the child was stillborn. Her mother had hidden the truth to protect Bihu's reputation. The older man Shantanu encountered at the orphanage was his grandfather.

• bihu
• shantanu
• mother
• son
• orphanage
• family secret
• stillborn

At 5:00 PM in 1984 (in the altered timeline), Subroto Das walks into a warehouse and retrieves the unburnt portion of Mitra's papers. This suggests some evidence of the original timeline's events survives the changes, hinting that certain elements may still influence the new reality or could potentially resurface.

• end credits
• das
• warehouse
• papers
• 1984
• mitra documents

Shantanu is the only person who retains memories of both the original and altered timelines. This likely occurs because he was the one who physically traveled back through time and intervened, making him the anchor point between both realities. His unique cognitive link allows him to remember both versions of history.

• shantanu
• memory
• both timelines
• alternate reality
• time travel
• consciousness

In the altered timeline, Mitra is stopped before he can board JL50 in 1984. The shootout at the factory godown prevents him from executing his hijack plan. While his exact fate in the new timeline isn't fully shown, the original timeline's Mitra who survived the crash no longer exists because the crash never happens.

• professor mitra
• 1984
• stopped
• hijack
• fate
• altered timeline

By preventing the 1984 hijack, JL50 never disappears and never crashes in 2019. The entire crisis is erased, including the investigation, the time travel attempts, and the hijackers' demands. Characters like Gaurango exist in this timeline but without the shared history of investigating the crash. Most importantly, Bihu remains in 1984 with her child instead of vanishing into the future.

• timeline changes
• future altered
• gaurango
• bihu
• shantanu
• jl50 never crashes

Bihu became pregnant out of wedlock and was told by her mother that the baby was stillborn to protect her social reputation. In reality, the child wasShantanu, who was abandoned at an orphanage. Her mother carried this guilt for decades, eventually revealing the truth when the timeline changes allow Shantanu to discover his origins.

• bihu
• stillborn
• lie
• shantanu
• orphanage
• mother
• unwed pregnancy

From the beginning of the investigation, Shantanu senses something is off about the whole incident. The discovery that the crashed aircraft is Flight JL50, a plane that vanished 35 years earlier, seems impossible. This leads him to suspect the evidence was manipulated or staged, though ultimately it was genuinely a time-travel event rather than a staged scene.

• cbi
• shantanu
• investigation
• staged evidence
• plane crash
• jl50

According to Subroto Das, Mitra miscalculated the coordinates of the wormhole he intended to traverse. While Project A was supposed to identify the precise location in the sky for time travel, the error caused JL50 to jump 35 years forward instead of the intended timeframe. This accidental journey is what led to the plane's mysterious appearance in 2019.

• wormhole
• coordinates
• miscalculation
• time travel error
• project a
• 35 years

In the altered timeline, Shantanu still grows up as an orphan at the same orphanage where he was originally found. However, the difference is that his mother Bihu now knows he survived and can be part of his life. The final scene shows them together at the orphanage in 2019, distributing gifts to children, suggesting a hopeful, healed relationship.

• shantanu
• orphanage
• childhood
• altered timeline
• bihu
• 2019
• hopeful ending