The Central Bureau of Investigation today searched the residence of Roy and three other locations for allegedly causing losses to a private bank, a move termed by NDTV as a "witch-hunt" based on "same old" false accusations.
"We strongly condemn raids on Dr Roy n NDTV group. Its an attempt to silence independent and anti-establishment voices," Kejriwal tweeted.
"This morning, the CBI stepped up the concerted harassment of NDTV and its promoters based on the same old endless false accusations," NDTV said in a statement.
"We will not succumb to these attempts to blatantly undermine democracy and free speech in India. We have one message to those who are trying to destroy the institutions of India and everything it stands for: we will fight for our country and overcome these forces," it said.