<h1>Opposition MPs stage walkout after Chair refuses debate on electoral roll revision and proceeds to introduce government bills</h1> Opposition MPs in the Rajya Sabha staged a walkout after the Chair proceeded to allocate time for two government bills and called on the Union minister to introduce the Indian Ports Bill while the Opposition sought a debate on the Special Intensive Revision of electoral rolls in Bihar. The Chair declined to take up the demand for the SIR discussion, prompting noisy protests and the walkout. Earlier, the House had been adjourned until 2 pm following protests over the rejection of 19 adjournment notices on various issues.