During the tenure of which of the following prime ministers Lok Sabha never meet?

Q. During the tenure of which of the following prime ministers Lok Sabha never meet?
Answer: Chaudhary Charan Singh
Notes: Charan Singh remained Prime Minister from 28 July 1979 to 14 January 1980. During his term, Lok Sabha never met because the day before when Lok Sabha was to meet, Congress withdrew support from his government and he needed to resign. This was followed by fresh elections.