ISI's gift to hijackers of Indian Airlines plane in Lahore: Paper-wrapped pistol
Before IC 814 was hijacked and taken to Kandahar, the hijacking of an Indian Airlines plane in 1984 by Khalistani terrorists remained the longest in Indian aviation history. The hijackers faked weapons initially, but got a paper-wrapped pistol from Pakistan's ISI after they diverted the plane to Lahore. Here's the story of the hijacking of IC 421 on its 40th anniversary.
