Explanation: Lok Sabha Speaker is provided with a security of tenure.

• He can be removed only by a resolution passed by the Lok Sabha by a special majority (ie, a majority of all the then members of the House) and not by an ordinary majority (ie, a majority of the members present and voting in the House).
• This motion for removal can be considered and discussed only when it has the support of at least 50 members.

Source: Laxmikanth’s Polity