Santanu Bhowmick, 28, worked for a local television channel. He was killed in West Tripura district while he was covering an IPFT agitation on Wednesday.
Mr Bhowmick was reportedly hit from behind and abducted at Mandai. He was later found with serious stab injuries and was rushed to the Agartala Medical College and Hospital, where the doctors declared him "brought dead".
"Appalled at the gruesome murder of TV journalist Santanu Bhowmick. Repeated attacks on media are worrisome for our democracy," Mr Gandhi said on Twitter.
(This story has not been edited by NDTV staff and is auto-generated from a syndicated feed.)
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