Nehru died in May 1964. Who consulted party leaders and found consensus for Lal Bahadur Shastri as successor?

1. Critics doubted democratic succession after Nehru. 2. Congress president K. Kamaraj found consensus for Shastri. 3. Shastri was chosen unanimously. _Source: syllabus Political Science, Politics in India since Independence, Chapter 5, Challenges to and Restoration of the Congress System._