The reason for his resignation was not known. Panmei could not be contacted as his phone was switched off.
"The reason for his resignation was best known to him only," Haokip said.
Assembly secretariat officials said the MLA from Tamenglong district submitted his resignation to Speaker Thokchom Lokeshwar Singh.
Panmei was elected in 2012 to the Assembly as a candidate of the Manipur State Congress Party (MSCP), a state party, but in April 2014, all the five MLAs of MSCP joined the Congress.
His resignation has not affected Congress' strength in the House as the party now has 48 members in the 60-member Assembly. However, the effective strength of the House is 52.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)