Al Ummah is a terrorist group involved in many terrorist attacks in Tamil Nadu . Started in 1993 after the Babri Masjid demolition , the organization was noticed for the 1993 bombing of RSS office in Chennai , which killed eleven people . The organization is tied to other attacks like the Coimbatore serial bomb blasts which killed 58 persons , while targeting Bharatiya Janata Party leader L. K. Advani during the city 's election campaign . It was tied to the bomb blast in Bangalore , the state capital of Karnataka . The terrorists were planning to strike the Tirumala Venkateswara Temple using umbrella bombs amidst the many pilgrims during the annual Brahmostavam festival . The Tamil Nadu police arrested one of the militants named Fakruddin ( also called ' Police Fakrudin ' ) on 4 October 2013 . '' Police '' Fakrudin , Panna Ismail and Bilal Malik were suspects in plotting attacks on Bharathiya Janata Party leader L.K. Advani during October 2011 , murder of Hindu Munnani leader Vellaiyan and BJP member V Ramesh in Salem . Fakrudin evaded arrest for 8 years and along with Panna Ismail and Bilal Malik in a group called " Muslim Defence Force " were planning to kill a public figure in Tamil Nadu in 2013 . The Tamil Nadu Police became aware of his movements . He landed in Chennai Central station on 4 October 2013 , when two policemen in plain clothes followed , chased and captured him
Coimbatore serial bomb blasts
1998 Coimbatore bombings
Operation Puttur