Red FM’s slur

What was the comment on a FM radio channel that set off mob violence in Siliguri? It has become a media convention to self censor in such cases, so nobody reported either the remark or the name of the offending channel. The channel was Red FM owned by a consortium which includes NDTV, and the remark as reported by IBN-live was that "shopkeepers will now have to make their own security arrangements as Gorkhas have taken to singing." RJ Jonathan Brady’s racist wisecrack has led the I & B Ministry to issue a show cause notice to the channel.