While 39 members of the all-important panel are general members, it has 32 permanent invitees, including some in-charges of state and 13 special invitees.
The Congress sought her intervention in helping bring normalcy in violence-hit Manipur, and called for the constitution of a high-level inquiry commission headed by a serving or retired Supreme Court judge to probe the incident.
The ruling Congress has pledged to improve the law and order situation in Manipur and withdraw the controversial Armed Forces Special Powers Act if voted to power in the assembly election.
The ruling party along with its alliance partner CPI notched up 22 seats of the 58 results declared so far.
"I will resign by tomorrow (on Tuesday) to facilitate the process of government formation," Singh said.
Two insurgents were killed during the June 4 ambush on armymen in Chandel district of Manipur and they belonged to National Socialist Council of Nagaland-Khaplang and Kanglei Yawol Kanna Lup, the state assembly was informed on Monday.
The MoU was signed on Monday between representatives of the state government and leaders of the Kangleipak communist Party-Nongdreinkhomba, Kuki National Liberation Front and Kuki Revolutionary Party.
After Arunachal Pradesh and Uttarakhand, discontent is brewing among Congress MLAs in Manipur.
He has also convened the first meeting of the extended CWC on July 22 to chalk out the party's future strategy.
After Arunachal Pradesh slipped out of its control and Uttarakhand was placed under President's rule, the Congress president took matters into her own hands.