• MBBS (1968) Calicut Medical College, Kerala, securing First class in all the subjects and was awarded Gold Medals in Pathology, Medicine and Obstetrics and Gynaecology.
• MD (General Medicine) 1972 - Trivandrum Medical College, Kerala State.
• DM (Nephrology) 1974 - from the Postgraduate Institute of Medical Education and Research, Chandigarh.
• Training in Dialysis and Transplantation at the Postgraduate Institute of Medical Education and Research, Chandigarh, under Prof. K.5. Chugh and Prof. B.K. Sharma for 2 years.
• F.I.S.N.- Fellowship of the Indian Society of Nephrology awarded in 1984-85 for the outstanding contribution to Nephrology in India.
• FRCP - (G) 2009 - Fellowship of the Royal College of Physicians and Surgeons of Glasgow.

• Tutor in Medicine, Medical College, Calicut, Kerala State from 1970 April to 1972 July.
• Registrar in Nephrology, PGIMER, Chandigarh, from July 1972 to June 1974.
• Tutor in Medicine, Medical College, Calicut, from July 1974 to March 1975.
• Assistant Professor & Chief of Nephrology, Medical College, Calicut from March 1975 to October 1981.
• Associate Professor & Chief of Nephrology, Medical College, Calicut from October 1981 to September 1989.
• Professor & Head of Nephrology, Calicut Medical College from October 1989 to December 1997.
• Member, National Board of Specialities.
• Chairman, Board of Studies (P.G), University of Calicut,1992 - 95.
• Dean, Faculty of Medicine, University of Calicut,1993 - 95.
• Superintendent, Medical College Hospital, Calicut, from November 1995 to February 1997.
• Chairman, Authorization Committee for Renal Transplantation of Kerala State, 1995 to December 1997.
• Senior Consultant Nephrologist, Baby Memorial Hospital, Calicut from February 1998 onwards.
• Patron, Cadaver Transplant Programme, Kerala State, 1999 onwards.

• Renal histological and functional changes in Hansen's Disease.
• Serum Haptoglobins in various renal disease.
• Haematuria in children.
• Serum uric acid and Hypertension in Pregnancy.
• Primary glomerular disease in Malabar, South India.
• Renal change in Filariasis
• Renal changes in lithium therapy.
• Renal changes in Pulmonary Tuberculosis.
• Renal changes in snake bite poisoning leading to papillary necrosis medullary necrosis. Adrenal Haemorrhage etc.
• Echocardiographic changes in Chronic renal failure.
• Tongue changes in Chronic renal disease.
• Acute renal failure in adults.
• Glomerular changes in Leptospirosis (Weil's disease) and ARDS in Weil's disease.
• Renal tubular function in post transplant patients.
• Carbohydrate intolerance in uraemia.

More than 100 papers in various journals.

Text books: Co-author and contributed chapters in:

• 'Textbook of Medicine' (Association of Physicians of India) - Edited by Siddharth N.Shah,Published by API 7th Edition - 2003 and 8th Edition - 2008.
• 'Textbook of Medicine' (Edited by Prof. K.V. Krishna Das, MRCP,FAMS) published by Jaypee - Brothers Medical Publishers (P) Ltd. - 4th Edition - 2002 and 5th Edition - 2008.
• 'Asian Nephrology '(Edited by Chugh K.S,MD,FRCP,FAMS), Published by Oxford university press 1994.
• 'Essentials of Nephrology and Urology' (Edited by R. Kasi Visweswaran) Published by B.L.
• Churchill Livingstone, (P). Ltd. First Edition - 1994 and Second Edition - 2008.
• 'Renal Diseases - Prevention and management (The Association of Physician of India and Indian College of Physicians) - Edited by OP. Kalra, Published by Jaypee Brothers Medical Publishers (P) Ltd. 2008.

• Gold Medal for the best student in Pathology, Calicut Medical College, 1965.
• Gold Medal for the best student in Obstetrics and Gynaecology, Calicut Medical College, 1967.
• Gold Medal for the best student in Medicine, Calicut Medical College, 1967.
• Gold Medal for presenting the best paper at the Annual Conference of the Obstetrics and Gynaecology Society of India, Kerala Branch, 1977.
• Gold Medal and 'Khuller Oration' of the Indian Society of Nephrology delivered at Hyderabad, January, 1984.
• Gold Medal and 'Sam G.P. Mosses Oration' of the Diabetic Association of India (Southern Chapter), 1987 for the work done in Diabetic Nephropathy.
• 'Vocational Service Award' by the Rotary Club of Calicut, 1991.
• Gold Medal and 'Annual Oration' - Alumni Association of Calicut Medical College, 1991.
• 'Academic Excellence' Award for 1995 from the PGI Alumni Association, Chandigarh.
• 'Best Doctor' award (Medical Education Department) of Kerala State, 1996.
• 'The Distinguished Professorship Award', from the Institute of Kidney disease and Research Institute of Renal Transplantation, Ahmedabad, 1996.
• 'Dr. P.A. Alexander Memorial Oration Award' of IMA (Indian Medical Association) Academy of Medical Specialities, Kerala State, 1999.
• 'Lifetime Achievement award' for the Association of Physician of India, Kerala Chapter,2008.
• 'Prof. J.C.M Shastry Oration Award' of the Indian Society of Nephrology December 2009.
• 'Scribner Award' of the southern chapter of ISN for the Pioneer work in Dialysis and transplantation in Kerala State presented by the Former President A.P.J. Abdul Kalam February 2010.
• First orator of 'Prof. M.S. Amaresan Endowment Oration' of Madras Medical College, Chennai, 2010.
• 'Manava Seva Award - 2011' of the Mar Thoma Syrian Church of Malabar, for the outstanding contributions to the society
• ‘Lifetime Achievement Award’ by Madras Kidney Trust and Hypertension Research Foundation – June 2015.
• ‘Lifetime Achievement Award’ by Tamilnadu Kidney Research Foundation – January 2016.