The National Investigation Agency on Monday began the process of removing the online contents of banned Islamic Research Foundation, including alleged hate speeches by its founder Zakir Naik, even as it continued searches at the IRF's premises, an official said.

"As part of investigation, all actions that need to be taken against a proscribed organisation, including banning of its online activities, are being undertaken," an NIA spokesperson told PTI.

After the Centre recently banned IRF for five years, its website was blocked by authorities.