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An archaeologist of international repute, Professor B.B. Lal was the Director General of the Archaeological Survey of India from 1968 to 1972. In the latter year, he took voluntary retirement, better to pursue his research programmes independently. He joined Jiwaji University, Gwalior, as a Professor and later moved to the renowned Indian Institute of Advanced Study, Simla, of which he was also the Director for many years. Born on 2 May 1921, Lal had a brilliant academic career throughout. On joining the Archaeological Survey in 1946, he held charge of the Excavations Branch and participated with Sri Mortimer Wheeler in the excavations at Harappa. Soon he paved his way up, becoming in 1959 the first Director of the School of Archaeology. In 1971, Prof Lal was invited as Alexander White Visiting Professor at the University of Chicago. In 1994, he was awarded D.Litt. degree (honoris causa) by the Institute of Archaeology, St. Petersberg, Russia. The same year he was elected President of World Archaeological Congress-3. He has been President and Member of several UNESCO Committees. At home, the Nava Nalanda Mahavihara conferred on him the title of Vidya Varidhi and the Mithila Vishvavidyalaya, that of Mahamahopadhyaya. He has also been honoured by the Indian Science Congress, Indian Archaeological Society and Asiatic Society, Bombay. Professor Lal has many significant excavations to his credit, ranging from the palaeolithic times to early historical. In 1961, under a UNESCO project, he conducted excavations in Nubia, Egypt. His publications include, besides excavation-reports and other books, over a hundred and fifty research papers, published in scientific journals, both in India and abroad: in USA, UK, France, Italy, Egypt, Pakistan, Japan, etc.

R. Sengupta received his M.Sc. (Physics with specialisation in Electronics) and Ph.D. (Electronics, Faculty of Science) from Ranchi University in 1976 and 1983 respectively. Concurrently, he served as a lecturer in Physics in Ranchi University (1976-86), teaching Physics and Electronics to UG students.

In 1986, he joined the Dept. of Electronics, Govt. of India, where he is at present as Joint Director, at Electronic Regional Test Laboratory, Mumbai. He is also head of the Centre for Electronic Interconnection at E.R.T.L, Mumbai, which is offering training, consultancy and advisory services to western/central Indian industries in the area of soldering technique and its allied subjects, since 1989. Till date. Dr. Sengupta and his team have trained more than 2000 personnel from about 225 industries, some including multinationals also.

Dr. Sengupta has provided consultancy and advisory services to various industries for the overall improvement in PCB assembly process, establishment of through hole and SMD PCB assembly lines, soldering, process defect(s) analysis, implementation of ESD control programme in an electronic manufacturing unit, formation/certification of PCB assembly repair centre, etc.

Dr. Sengupta is a Fellow of IETE (India), Members of IPC (USA) and SMT (USA). He has authored more than 50 technical papers. He is also a Guest Faculty in I.I.T., Mumbai in their M.Tech (Reliability Engineering Programme).

Dr. S.P. Singh, obtained degrees of B.Sc. (Hons.) Ag. & A.H. and M.Sc. (Ag.) Horticulture from G.B. Pant University of Agriculture & Technology, Pantnagar (UP) India in 1964 and 1970 respectively. In the same University, he conducted research and imparted technical know-how on seed production technology in cereal and vegetable crops to the progressive farmers of Tarai region of western U.P. He was awarded Senior Research Fellowship by CSIR, New Delhi leading to Ph.D. degree in Horticulture at National Botanical Reserch Institute, Lucknow under Kanpur University, Kanpur (UP) in 1974-78. He joined Konkar Krishi Vidyapeeth, Dapoli, Ditt. Ratnagiri (MS) as Assistant Professor in 1978 and worked in the cadre of Associate Professor from January 1979 to Nov. 1983 in the same University. Presently Dr. Singh is serving as Associate Professor of Horticulture at Gujarat Agricultural University, Junagadh Campups, Junagadh since December, 1983. Dr. Singh has published more than 50 research papers and 65 semi-research articles in Horticulture. Dr. Singh is a life member of the Indian Journal of Plant Science Research and Indian Farmers’ Digest His main areas of interests are floriculture, olericulture and plantation crops. He is author of three more books, viz. 1. Mist propagation, 2. The Gliricidia, 3. Scientific Management of Arecanut Gardens.