Explanation:

In the ongoing Winter Session of Parliament, Minister for Parliamentary Affairs Prahlad Joshi sought the approval of the House for suspending 12 Rajya Sabha MPs for the remainder of the session.

• The presiding officer of each House can direct an MP to withdraw from the legislative chamber for grossly disorderly conduct. The MP then has to remain absent from the proceedings of the House for the remainder of the day. The presiding officers can also “name” an MP for “persistently and wilfully obstructing the business” of the House. In such a case, usually, the Parliamentary Affairs Minister moves a motion for suspending the offending MP from the service of the House. The suspension can last until the end of the session.
• In 2001, the Lok Sabha rule was amended to give the Speaker one additional power. A new rule, 374A, empowers the Speaker to automatically suspend an MP for a maximum of five days for disrupting the business of the House. Hence statement 2 is correct.
• In 2015, Speaker Sumitra Mahajan used this rule for suspending 25 Congress MPs.
• The first instance occurred in 1963. A few Lok Sabha MPs first interrupted President Sarvapalli Radhakrishnan and then walked out while he was delivering the joint address to both Houses. Lok Sabha ended in reprimanding these MPs. In 1989, 63 MPs were suspended from Lok Sabha on the discussion of the Thakar Commission report. 
• More recently in 2010, 7 MPs were suspended from Rajya Sabha for snatching the women’s reservation bill from the minister. Since then, MPs have raised slogans, used pepper spray in the House and displayed placards.

Hence only statements 1&2 are correct.