All 12 Lok Janashakti Party MLAs today resigned from Bihar Assembly in protest against their suspension by Speaker Udaya Narain Chowdhary for the rest of the session.

"All the 12 MLAs of the party have submitted their resignation letters to National President Ram Vilas Paswan and state chief Pashupati Kumar Paras in protest against their suspension from the state Assembly yesterday," LJP spokesman Keshav Singh said.

The MLAs had submitted their letters at the state legislature party meeting held here last evening and requested the party leadership to take a decision, he said.

The MLAs felt that their continuance as members of the state Assembly was "meaningless" after the "insult" they were subjected to by the speaker in the House yesterday when they were suspended.

"It has denigrated the position of the members of the house," he said.

Chowdhary had yesterday suspended 11 of the 12 LJP MLAs for their unruly behaviour in the house on Tuesday and Wednesday.

The Speaker had yesterday suspended a total of 67 opposition MLAs for the rest of the monsoon session for their unruly behaviour in the House.