The correct answer is The Secretary-General passes orders in the name of the Speaker.
The Lok Sabha's Secretary-General is the administrative head of the Lok Sabha Secretariat.
He or she is appointed by the Speaker of the Lok Sabha.
The post of the Secretary-General is equivalent to the rank of the Cabinet Secretary in the Government of India, who is the senior-most civil servant to the Indian Government.
Role of Secretary-General of Lok Sabha-
In the discharge of his constitutional & statutory responsibilities, the Speaker of the Lok Sabha is assisted by the Secretary-General, Lok Sabha, (whose position, pay scale and status, etc. is equivalent to that of the highest-ranking official in the Government of India, i.e. Cabinet Secretary, Joint Secretary and other officers, functionaries of the level of the Additional Secretary and staff of the Secretariat at various levels.
The Secretary-General remains in the office till his/her retirement at the age of 60.
He or she is answerable only to the Speaker, his/her actions can't be discussed or criticized in or outside the Lok Sabha.
On the behalf of the President of India, he or she summons members to attend the session of Parliament and authenticates bills in the absence of the Speaker.
About Speaker of the Lok Sabha
The Lok Sabha, which is the highest legislative body in the country, chooses its Speaker who presides over the day-to-day functioning of the House.
Electing the Speaker of the House is one of the first acts of the newly constituted House.
The office of the Speaker is a Constitutional Office.
The Speaker is guided by the constitutional provisions and the Rules of Procedure and Conduct of Business in Lok Sabha.
The Speaker is placed very high in the Warrant of Precedence in the country i.e. at rank 6.
Adequate Powers are vested in the office of the Speaker to help her/him in the smooth conduct of parliamentary proceedings.
The constitution provides that the Speaker’s salary and allowances are not to be voted by the Parliament and are to be charged on the Consolidated Fund of India.
In the Lok Sabha chamber, the Speaker’s chair is distinctively placed to enable a commanding view of the entire House.
The Speaker is assisted by the Secretary-General of the Lok Sabha and senior officers of the Secretariat on parliamentary activities, practice and procedure.
In the absence of the Speaker, the Deputy Speaker discharges the functions. A member from the Panel of Chairmen presides over the House in the absence of both the Speaker and the Deputy Speaker.
Lok Sabha Speaker Om Birla has appointed Utpal Kumar Singh, as Secretary-General of Lok Sabha (Dec 2020)