29 years ago this fortnight, Pakistan's dictator -- the general who made jihad an integral part of Pakistani State policy -- died in a mysterious air crash. Did the KGB, the then USSR's dreaded espionage agency, assassinate Zia-ul Haq? Was India's RA&W responsible for blowing Zia's military aircraft out of the skies? Was it Zia's many enemies in Pakistan's military? Was it a case of exploding mangoes as Mohammad Hanif speculated in his fascinating novel about Zia's death? Or was the assassin someone else? Kallol Bhattacherjee delves into the persistent puzzle of Muhammad Zia-ul Haq's death. IMAGE: General Zia-ul Haq...