After Chairman Hamid Ansari made obituary references to passing away of former members Dilip Singh Judev and S M Laljan Basha and mourned the death of Navy personnel in a submarine accident, members of BJP, SP and Left parties sprang to their feet.
Ansari asked members to speak one by one and allowed M Venkaiah Naidu (BJP) to make his submission.
Naidu said files pertaining to coal block allocation have gone missing and it was a serious issue. Ansari then asked him to raise the issue during Zero Hour.
"Uttar Pradesh ko vishesh rajya ka darja do (give special status to Uttar Pradesh)," they shouted.
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Left MPs too were up on their feet carrying banners seeking check on spiralling onion prices.
Ansari asked members to resume their places so that Question Hour could be taken up. He asked them not to show posters.
As his request went unheeded, Ansari adjourned the House for 15 minutes.
When the House reassembled, SP members were again on their feet demanding special status for Uttar Pradesh.
He said any decision would be taken only after the committee submits its report.
SP members, however, kept raising slogans, forcing Ansari to adjourn the House till noon.