Amid clamour in Congress to declare Rahul Gandhi its Prime Ministerial candidate, party leader Digvijay Singh today appeared advocating caution, noting that in a parliamentary system it is the elected members of Parliament and Assemblies who choose their leader.

"I have been consistently saying that we are a parliamentary democracy and here it is not a contest between key personalities. It's a contest between policies, ideologies and programmes of parties," Singh told reporters.

He said that under this system, whichever party comes with a majority, the leader there is chosen by newly elected members of Parliament and Assemblies at the end of the day. "And then he becomes Prime Minister or Chief Minister.... That is the age-old practice....However, party President Sonia Gandhi has given an indication on December 8....If Congress party wants to declare (the PM candidate), it is okay," he said. Singh also said that in a parliamentary democracy, there is the Prime Minister and a 'shadow' Prime Minister.

"The shadow Prime Minister is obviously Sushma Swaraj as the Leader of the Opposition," he said, dismissing the "debate about Rahul Gandhi versus Narendra Modi, Modi versus Arvind Kejriwal and Rahul versus Modi versus Kejriwal" as something only linked to TRP readings of electronic media.