Which one of the following is the largest Committee of the Parliament?

Which one of the following is the largest Committee of the Parliament?

The Committee on Public Accounts
The Committee on Estimates
The Committee on Public Undertakings
The Committee on Petitions
This question was previously asked in
UPSC IAS – 2014
Among the listed committees of the Indian Parliament, the Committee on Estimates is the largest.
The Committee on Estimates consists of 30 members, all of whom are from the Lok Sabha (House of the People). The Committee on Public Accounts and the Committee on Public Undertakings each consist of 22 members (15 from Lok Sabha and 7 from Rajya Sabha). The Committee on Petitions has a varying number of members, typically smaller than the others listed.
The Estimates Committee scrutinizes the estimates included in the budget presented to Parliament and suggests economies in public expenditure. It is considered one of the three financial committees of Parliament, along with the Public Accounts Committee and the Committee on Public Undertakings.