Speaking at an all-party meeting on the session's eve, Modi again pitched for simultaneous polls for the Lok Sabha and state assemblies saying that holding elections once in five years will boost development.
Briefing reporters on Modi's remarks, Parliamentary Affairs Minister Ananth Kumar said the prime minister appealed to leaders of all political parties to help build a consensus on the matter.
"He also sought their cooperation to make the session meaningful and constructive," Kumar said.
Congress leaders raised the issue of Modi's claim during a speech in Gujarat that Singh colluded with Pakistan to influence the state polls, and said they will raise it in Parliament.
"We will raise the issue in Parliament. Either the government prove the claim or the prime minister apologise. Nothing short of an apology will satisfy us," its leader Anand Sharma said.