Prime Minister Narendra Modi on Wednesday termed opposition parties' plan to form a 'mahagathbandhan' (grand alliance) as a "failed idea," saying they want a weaker government at the Centre.

Interacting with the Bharatiya Janata Party workers from five Lok Sabha constituencies through video-conferencing on his NaMo mobile app, Modi said: "The parties first fight with each other. But whenever they get a chance, they come together to grab power."