There is a possible connection with the Andhra and Varanasi attacks . An official was quoted as saying " The aim of these groups , whether HuJI or LeT or Simi , is clear . Bangalore and Hyderabad are being chosen as targets to create panic in the US as the cities house the biggest IT companies from the US . " The Andhra – Karnataka link involves Raziuddin Nasir , a Hyderabad resident , and his aide Hafiz Khan Adnan from Bangalore , were arrested near Hubli in Karnataka this year . Furthermore , another clear link between the terror elements in both blasts is the explosive material used . In the Bangalore blasts an explosive with an ammonium nitrate base was used , while in the Gokul Chat and Lumbini Park explosions in Hyderabad a similar ammonium nitrate base was used . These were also of low intensity with the aim of creating panic . Like the Malegaon and Mecca Masjid blasts , it took place on a Friday during or just after the prayers . In response to these blasts security was also beefed up in Andhra Pradesh
Varanasi
2006 Varanasi bombings
2008 Bangalore serial blasts