Singh termed demonetisation as "a case of organised loot and legalised plunder".
As Prime Minister Narendra Modi attended the House, the opposition and the ruling side came to an agreement to do away with the Question Hour and resume the debate, which had been left incomplete on November 16.
Leader of the House and Finance Minister Arun Jaitley said the Prime Minister will also participate in the debate.
Debate was resumed during the Question Hour, from 12 pm to 1 pm, after which the House went into lunch break. When it met again at 2 pm, the Prime Minister was not there, prompting the opposition parties to demand his presence again as they wanted him to listen to all the speakers.
More From This Section
Deputy Chairman P J Kurien said the discussion should be carried forward as the Leader of the House has said that Prime Minister will come.
Jaitley said his "apprehensions" that the opposition did not want the debate had come true as they were looking for "excuses" to run away from the discussion.
As pandemonium prevailed, the House was adjourned till 3 PM and then for the day as the same situation existed.
Earlier speaking during the debate, Singh said, "These measures convinced me that the way the scheme has been implemented, it's a monumental management failure."
The noted economist said the decision will result in decline of GDP by 2 per cent, which was an "under-estimate and not an over-estimate".
"It is not my intention to pick holes what this side or other side does. But I sincerely hope that the PM even in this late hour will help find us practical and pragmatic ways to provide relief to the suffering of the people of this country," the former Prime Minister said.