Officials, investigating the November 1 Malappuram car blast, have seized a pen drive containing photographs of PM Modi, the reports said. A letter warning of another blast and avenging of Dadri beef victim Mohammed Akhlaq's murder was also recovered from the scene.
According to media reports, investigating agencies believe that the Tamil Nadu-based terror outfit ‘Al-Ummah’, which came into existence just after Babri Masjid demolition, may be behind these blasts.
The pendrive also contains the message that the "Base Movement" is determined to carry out more such attacks on courts in Maharashtra and Tamil Nadu.
The 'Base Movement', another name for Al Ummah, a terror outfit banned after the 1998 Coimbatore blasts. The pendrive also had videos of Babri Masjid demolition, Gujarat riots, photographs of Mumbai blast convict Yakub Memon and Dadri mob lynching victim Akhlaq.
Al Ummah had earlier tried to kill BJP Leader LK Advani in 1998 in Coimbatore. Al Ummah owes its allegiance to Al Qaeda, reports said.