In 1985 he joined an Islamic organization, ‘Tanzim Islah-ul-Muslimeen' – ‘Islamic armed organization'. One of their associates - Jalees Ansari, set off a series of 43 explosions in Mumbai and Hyderabad and seven separate bomb blasts on trains in 1993.
As the result of the 1993 attack Abdul-Karim Tunda and the ‘Tanzim Islah-ul-Muslimeen' came under police scanner.
In 1994 Tunda escaped to Dhaka after Jalees Ansari' arrest. He came under direct command of Zaki-ur-Rehman. Abdul-Karim Tunda became an Indian fugitive since then.
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