The proceedings were stalled after the Congress and other opposition members created uproar, demanding that the prime minister comes to the House and clarifies his remarks against Singh.
The Upper House was adjourned twice - first during the Zero Hour as opposition members disrupted proceedings by trooping into the Well and raising slogans and then again in the Question Hour when similar scenes continued.
He adjourned the House till 2 PM thereafter.
When the House met for the day, Congress members rushed into the Well demanding an apology from Modi for his "conspiracy with Pakistan" remarks against Singh, alleging that he had colluded with Pakistan to defeat BJP in Gujarat.
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The Congress members were up on their feet as soon as the listed papers were tabled, demanding an explanation from the Prime Minister on his remarks.
After Naidu disallowed them, they rushed to the Well of the House raising slogans.
The Chairman asked them not to create obstruction and allow other members to raise important issues.
"This is not the way," he said. "This is Parliament. This is Rajya Sabha. Wrong message is going."
Stating that he did not appreciate their behaviour, Naidu said, "Please don't exceed the limit. Please go to your seat". Thereafter, he adjourned the House till noon.
"Please sit. Don't attempt to snatch the rights of others. Let members have the opportunity to ask their questions. Questions have been listed and much money has been spent...This is not the way," he said.
However, the unrelenting members continued their uproar, forcing the Chair to adjourn the House till 2 PM.