After the death of which prime minister did Gulzarilal Nanda take over as the acting prime minister for the second time?

Correct option is D

The correct answer is (d) Lal Bahadur Shastri.
· Gulzarilal Nanda served as the acting Prime Minister of India for the second time after the sudden death of Lal Bahadur Shastri in 1966.
· Shastri passed away while in office, and Nanda, who was then the senior-most leader, was appointed as the acting Prime Minister until a new Prime Minister was chosen.
Explanation of Other Options:
· Indira Gandhi: Indira Gandhi succeeded Lal Bahadur Shastri as Prime Minister after Gulzarilal Nanda's interim role.
· Charan Singh: Nanda did not take over after Charan Singh's term.
· Jawaharlal Nehru: Nanda first served as acting Prime Minister after Nehru's death in 1964.