1. TEACHING & SUPERVISION OF RESEARCHES AT POST-GRADUATE / DOCTORAL LEVELS (Exclusive) :
(a) Period : 34 Years and 3 Months.
(b) Positions :
i. Lecturer in Horticulture, Allahabad Agricultural Institute, (now SHUAT), Allahabad (under Allahabad University), U.P., India : 3 Years, 2 Months and 16 Days . (2.1.1971 to 16.3.1974).
ii. Lecturer and then Reader in Horticulture, Bidhan Chandra Krishi Vishwavidyalaya, Kalyani, West Bengal, India : 12 Years and 29 Days . (20.3.1974 to 17.4.1986).
iii. Reader and then, Professor in Horticulture, Institute of Agricultural Sciences (formerly, University College of Agriculture), Calcutta University, Calcutta, West Bengal, India : 18 Years 11 months and 14 Days (18.4.1986 to 31.3.2005).
2. RESEARCH (Exclusive) :
(a) Period : 4 Years, 6 Months and 3 Days.
(b) Positions :
i. Junior Research Assistant, Sugarcane Research Institute, Govt. of Bihar, Pusa, Bihar, India : (2.6.1961 to 21.4.1962).
ii. Senior Research Fellow (Horticulture), under the Indian Council of Agricultural Research, Govt. of India, New Delhi : tenable at the Department of Botany, Burdwan University, Burdwan, West Bengal, India : (19.5.1967 to 1.1.1971).
3. FRUIT DEVELOPMENT & AGRICULTURAL EXTENSION EDUCATION (Exclusive) :
(a) Period : 2 Years and 6 Months.
(b) Positions :
i. Agril. Extension Officer, Govt. of West Bengal, Community Development Block, Borjora, Bankura, West Bengal, India : (11.12.1962 to 28.10.1964).
ii. Fruit Development Officer, In-Charge, Burdwan District, Govt. of West Bengal, India : (6.10.1966 to 18.5.1967).
4. FARM MANAGEMENT (Exclusive) :
(a) Period : 7 Months and 11 Days
(b) Position :
Agril. Inspector, Ranchi Agricultural College Farm, Govt. of Bihar, Ranchi, Bihar, India : (22.4.1962 to 1.12.1962).
LAST POST HELD :
Professor in Horticulture, Institute of Agricultural Sciences, Calcutta University, Kolkata, West Bengal (Formerly, University College of Agriculture, Calcutta University).