"The biggest threat to the world is posed by terrorism...The entire world will have to unite against it," he said at a programme organised by 'Bhojpuri Adhyan Shodh Sansthan' here.
In an attempt to effectively reach out to the predominantly Bhojpuri-speaking audience, Singh said in Bhojpuri, "Na aata chahi na tata chahi, humhi ke Pakistan mein sannata chahi (we want nothing except silence in Pakistan)".
The inclusion of Bhojpuri in the eighth schedule of the Constitution is a long-pending demand of the people of the Purvanchal area of the state.
Later, replying to a query during an informal interaction with the media, Singh said the decision to scrap the Rs 500 and Rs 1,000 currency notes should be viewed in the light of terrorism and how it will go a long way in checking it.