1. I started as Senior Lecturer at the Department of Farm Power & Machinery in 1970 and was promoted to Associate Professor in 1978 then promoted to Professor in the Department of Farm Power & Machinery in the year 1986 at the same Department under the Faculty of Agricultural Engineering and Technology. 2. I was the head of the Department of Farm Power & Machinery during 1988-89 for 2 years.3. I was Dean of the Faculty of Agricultural Engineering and Technology during 1992-94 for 2… Show more 1. I started as Senior Lecturer at the Department of Farm Power & Machinery in 1970 and was promoted to Associate Professor in 1978 then promoted to Professor in the Department of Farm Power & Machinery in the year 1986 at the same Department under the Faculty of Agricultural Engineering and Technology. 2. I was the head of the Department of Farm Power & Machinery during 1988-89 for 2 years.3. I was Dean of the Faculty of Agricultural Engineering and Technology during 1992-94 for 2 years.4. Director, Bangladesh Agricultural University Research Division from 2004-2006 for 2.5 years. Show less