"There is no need to bring a no-confidence motion. This government will fall on its own as UPA allies are withdrawing their support one by one," Singh told reporters here today.
Singh earlier participated at the farmers' protest at Jantar Mantar where he assured the farmers that their demands, including bringing in crop insurance, would be met once BJP came to power.
The BJP chief alleged Prime Minister Manmohan Singh did not even bother to enquire why farmers were protesting in the national capital for the past three days.
Singh said India should strive to become the farming capital of the world.