Question: Who presides over the sessions of lok sabha?
Disambiguated questions and answers: question: Who primarily presides over the sessions of the Lok Sabha?
Who presides over the sessions of Lok Sabha in the absence of the Speaker?
Who presides over the sessions of Lok Sabha in the absence of the Speaker and the Deputy Speaker of the Lok Sabha?
answer: Speaker
Deputy Speaker of the Lok Sabha
Deputy-Chairman of the Rajya Sabha
Natural Questions answer: Speaker (from the Wikipedia article "Lok Sabha")