(c) All three statements are correct
The concept of “One Nation, One Election” indeed proposes holding simultaneous elections for the Lok Sabha and all State Legislative Assemblies to streamline the electoral process and reduce the frequency of elections.
First General Elections to the House of People (Lok Sabha) and all State Legislative Assemblies were held simultaneously in 1951-52.
That practice continued in three subsequent General Elections held in the years 1957, 1962 and 1967. However, due to the premature dissolution of some Legislative Assemblies in 1968 and 1969, the cycle got disrupted.
In 1970, the Lok Sabha was itself dissolved prematurely and fresh elections were held in 1971. Thus, the First, Second and Third Lok Sabha enjoyed full five-year terms.
The term of the Fifth Lok Sabha was extended till 1977 under Article 352. After that, the Eighth, Tenth, Fourteenth and Fifteenth Lok Sabha could complete their full five-year terms. The Sixth, Seventh, Ninth, Eleventh, Twelfth and Thirteenth Lok Sabha was dissolved prematurely.
Simultaneous elections were the norm in India until 1967. The cycle was disrupted due to the premature dissolution of some Legislative Assemblies and the Lok Sabha.
Implementing “One Nation, One Election” would require several constitutional amendments, including changes to Articles 83, 172, and the introduction of a new Article 324A.

(a) 1 Only Statement is correct
The X-Ray Polarimetry Explorer (XPE) is indeed a space-based mission. It is designed to study the X-ray emissions from black holes, neutron stars, and other astrophysical objects to better understand the fundamental processes in the universe. This statement is correct.
The XPE mission is a NASA mission and is not a collaboration between NASA, ESA, and ISRO. It is not part of the International Space Station (ISS) program but is a standalone mission. Therefore, this statement is incorrect. (2nd statement is incorrect)

(b) C. Rajagopalachari
Chakravarti Rajagopalachari, popularly referred to as Rajaji, was born on 10 December 1878 in Thorapalli, Tamil Nadu.
Rajaji’s personal interaction with Gandhi in 1919 led him to give up his legal profession to be fully involved in the nation’s independence struggle.
He participated in agitations against the Rowlett Act, the Non-Cooperation movement, the Vaikom Satyagraha, and the Civil Disobedience Movement.
For these activities, between 1912 and 1941, as a result of which he was jailed five times. Rajaji was elected to the Constituent Assembly from Madras on a Congress party ticket. In the Assembly, he intervened on the issues of religious freedom and citizenship.
In 1954 he was conferred with the Bharat Ratna for his contribution to Indian politics and literature.

(b) Only two statements are correct (2nd and 3rd)
Comptroller and Auditor General of India-
During the Financial Proclamation is in operation, the executive authority of the Union shall extend to the giving of directions to any State to observe such canons of financial propriety as may be specified in the directions, and to the giving of such other directions as the President may deem necessary and adequate for the purpose. (1st statement incorrect)
While dealing with the audit and accounting of government companies, CAG does not have certain judicial powers for prosecuting those who violate the law. CAG is only an advisory body and has some quasi-judicial powers. (4th statement 4 is incorrect)
The Public Account Committee carries out the examination of the Appropriation Accounts relating to the Railways, Defence Services, P&T Department and other Civil Ministries of the Government of India and Reports of the Comptroller and Auditor-General of India thereon as also the Reports of the Comptroller and Auditor-General on Revenue Receipts mainly form the basis of the deliberation of the Committee.
The Comptroller and Auditor General is the “friend, philosopher and guide” of the Committee.
Information from CAG reports can be used by investigating agencies to press charges against those who have violated the law while managing public finances.

(c) All three statements are correct
The NCQG was indeed established to replace the previous climate finance target of $100 billion annually by 2020, set at COP15 in Copenhagen in 2009. The NCQG aims to mobilize financial resources to support developing countries in their climate actions post-2025. It was agreed upon at COP21 in Paris in 2015, with the goal of being established by 2025. The NCQG focuses on providing financial support for clean energy, climate resilience, and climate adaptation projects in developing countries.