The first convocation in 1966 at IIMA had Shri Mohamed Ali Currim Chagla, an eminent jurist, as the Chief Guest. In the photograph above, the dignitaries on the dias seated from right to left are Douglas Ensminger (Ford Foundation), Ravi Matthai (Director), M. C. Chagla (Chief Guest), Prakash Tandon (Chairperson), Harry Hansen (Harvard Business School) and Vikram Sarabhai (Founding Director).
Harry Hansen's speech at this event is available on the following link.

The second convocation in 1967 at IIMA had Dr. Vikram Ambalal Sarabhai, distinguished physicist and industrialist, as the Chief Guest. Kasturbhai Lalbhai, industrialist and IIMA Board member is seen seated next to Vikram Sarabhai.
The batch photograph for that year is available on the following link.

The third convocation in 1968 at IIMA had Smt. Indira Gandhi, the Honourable Prime Minister of India, as the Chief Guest. The above photograph shows Prakash Tandon (Chairperson) and Ravi Matthai (Director) on the dais with Indira Gandhi.
The batch photograph for that year is available on the following link.

The fourth convocation in 1969 at IIMA had Dr. Karan Singh, the Union Minister for Civil Aviation and Tourism, as the Chief Guest.
The batch photograph for that year is available on the following link.

The fifth convocation in 1970 at IIMA had Shri Lakshmi Kant Jha, the eighth Governor of the RBI, as the Chief Guest.
The batch photograph for that year is available on the following link.

The sixth convocation in 1971 at IIMA had Shri Dharma Vira, the Governor of Mysore, as the Chief Guest.

The seventh convocation in 1972 at IIMA had Shri C. Subramaniam, the Minister of Planning, Science and Technology, as the Chief Guest.

The eighth convocation in 1973 at IIMA had Shri D. P. Dhar, the Minister of Planning, Government of India, as the Chief Guest.
The batch photograph for that year is available on the following link.

The ninth convocation in 1974 at IIMA had Prof. Saiyid Nurul Hasan, the Union Minister of Education, as the Chief Guest.
The batch photograph for that year is available on the following link.

The tenth convocation in 1975 at IIMA had Shri T. A. Pai, the Minister for Industry and Civil Supplies, as the Chief Guest.
The batch photograph for that year is available on the following link.