• 5 years at Guwahati Commerce College (1964–1969).
• 32 years at Guwahati University, Post-Graduate Commerce Department (1969–2001).
• 2 years at North Eastern Hill University, Shillong, as Visiting Professor (2001–2003).
• Taught Secretarial Practice and Stenography at Kamrup College of Vocational Training (1957–2020).

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