The correct answer is: D. Karan Singh.
Karan Singh was the son of Maharaja Hari Singh, the last ruler of Jammu and Kashmir. He was also the first Sadr-i-Riyasat (President) of Jammu and Kashmir from 1952 to 1965. He was a member of the Indian National Congress and served as a Union Minister in the Indira Gandhi government from 1975 to 1977.
The Sheikh Abdullah-Indira Gandhi accord was signed on 24 February 1975. It was a major political agreement between the Indian government and the National Conference party of Sheikh Abdullah. The accord restored Sheikh Abdullah to power in Jammu and Kashmir after he had been in detention for over 11 years. It also granted a number of concessions to the state of Jammu and Kashmir, including greater autonomy and a promise of a plebiscite on the issue of Kashmir’s accession to India.
The accord was mediated by Karan Singh. He was a close friend of Sheikh Abdullah and had been instrumental in bringing the two sides together. He was also a trusted confidante of Indira Gandhi. Singh’s role in mediating the accord was crucial to its success.
The Sheikh Abdullah-Indira Gandhi accord was a major turning point in the history of Jammu and Kashmir. It restored peace and stability to the state and paved the way for a more democratic and autonomous future.