The accused, identified as Syed Zakeer Raheem, was arrested by the Saudi authorities in May last year.
He was yesterday deported to Delhi from where he was taken into custody and taken to Hyderabad today, as per a release issued by National Investigation Agency (NIA).
He is accused in the case registered by Hyderabad Police regarding a conspiracy to kill certain BJP leaders, it said.
Raheem is brother-in-law of wanted terrorist Farhatuallah Ghori, presently in Pakistan, the release said.
The Bangalore police had in 2012 registered a case in this regard. Later in the same year, the NIA took over the case.
Disclaimer: No Business Standard Journalist was involved in creation of this content