• Consultant in Gastroenterology at Gitanjali Medical Center, Trichy (2011 to 2013)
• Consultant in Gastroenterology at Apollo Speciality Hospitals, Trichy (2013 onwards)
   

• Indian Medical Association (IMA)
• Association of Physicians of India (API)
• Indian Society of Gastroenterology (ISG)
• Indian National Association for study of Liver (INASL)
• Society of Gastrointestinal Endoscopy of India (SGEI)
• European Society of Gastrointestinal Endoscopy (ESGE)
• Trichy Society of Gastroenterology (Founding member and Secretary)

Certificate courses

• Scientific communication (SGPGIMS, Lucknow)
• Computer applications (SGPGIMS, Lucknow)
• Research Methodology (SGPGIMS, Lucknow)
• Biostatistics (SGPGIMS, Lucknow)
• Microscopy (SGPGIMS, Lucknow)

• Honors in Anatomy; Distinctions in Physiology, Biochemistry, General medicine, Obstetrics &Gynaecology and Paediatrics
• Blackwell award for Clinical Medicine in 2002 from Madras Medical College, Chennai
• Prize for oral presentation at UP-ISGCON, 2009,  Mussoorie
• Prize for Poster presentation at INASL, 2010, Bhubaneshwar
• Young clinician award at INASL, 2011, Chandigarh
• Endoscopy quiz prize at ENDOCON 2012, Kolkatta and free travel fellowship to DDW 2013
• European Society of Gastrointestinal Endoscopy (ESGE)fellowship awarded by ESGE for yerar 2015
• Japanese Society of Gastroenterology (JSGE) Research Fellowship Program Award for the year 2015

• Murali R, Bhalla A, Singh D, Singh S. “Acute pesticide poisoning: 15 years experience of a large North-West Indian hospital” ClinToxicol. 2009 Jan;47(1):35-8.
• Gupta RK, YadavSK, Rangan M, Rathore RKS, Thomas MA, Prasad KN, Pandey CM, SaraswatVA.“Serum proinflammatory cytokines correlate with diffusion tensor imaging derived metrics and ¹H-MR spectroscopy in patients with acute liver failure” Metab Brain Dis. 2010;25:355-6.
• Ghoshal UC, Rangan M. “A Review of Factors Predicting Outcome of Pneumatic Dilation in Patients With Achalasia Cardia” J NeurogastroenterolMotil. 2011;17:9-13
• Ghoshal UC, Rangan M, Misra A, “Pneumatic dilation for achalasia cardia: Reduction in lower esophageal sphincter pressure in assessing response and factors associated with recurrence during long-term follow-up” Dig Endosc. 2012 Jan;24(1):7-15.
• Gupta RK, Yadav SK, Saraswat VA, Rangan M, Srivastava A, Yadav A, Trivedi R, Yachha SK, RathoreRK.“Thiamine deficiency related microstructural brain changes in acute and acute-on-chronic liver failure of non-alcoholic etiology” ClinNutr. 2012 Jun;31(3):422-8.
• Choudhuri G, Rangan M. “Amebic infections in humans” Indian J Gastroenterol. 2012 Jul;31(4):153-62.
• Yadav SK, Gupta RK, Saraswat VA, Rangan M, Thomas MA, Rutella S, Danese S, Wang E, Marincola FM, Haris M. “Reduced cortical thickness in patients with acute-on-chronic liver failure due to non-alcoholic etiology” J Transl Med 2015 Oct 6;13(1):322.
• Murali R, Bhalla A, Singh D, Singh S. “Acute pesticide poisoning: 15 years experience of a large North-West Indian hospital” ClinToxicol. 2009 Jan;47(1):35-8.
• Gupta RK, YadavSK, Rangan M, Rathore RKS, Thomas MA, Prasad KN, Pandey CM, SaraswatVA.“Serum proinflammatory cytokines correlate with diffusion tensor imaging derived metrics and ¹H-MR spectroscopy in patients with acute liver failure” Metab Brain Dis. 2010;25:355-6.
• Ghoshal UC, Rangan M. “A Review of Factors Predicting Outcome of Pneumatic Dilation in Patients With Achalasia Cardia” J NeurogastroenterolMotil. 2011;17:9-13
• Ghoshal UC, Rangan M, Misra A, “Pneumatic dilation for achalasia cardia: Reduction in lower esophageal sphincter pressure in assessing response and factors associated with recurrence during long-term follow-up” Dig Endosc. 2012 Jan;24(1):7-15.
• Gupta RK, Yadav SK, Saraswat VA, Rangan M, Srivastava A, Yadav A, Trivedi R, Yachha SK, RathoreRK.“Thiamine deficiency related microstructural brain changes in acute and acute-on-chronic liver failure of non-alcoholic etiology” ClinNutr. 2012 Jun;31(3):422-8.
• Choudhuri G, Rangan M. “Amebic infections in humans” Indian J Gastroenterol. 2012 Jul;31(4):153-62.
• Yadav SK, Gupta RK, Saraswat VA, Rangan M, Thomas MA, Rutella S, Danese S, Wang E, Marincola FM, Haris M. “Reduced cortical thickness in patients with acute-on-chronic liver failure due to non-alcoholic etiology” J Transl Med 2015 Oct 6;13(1):322.
• Rangan M, SaraswatVA, A chapter on “Resistant Hepatitis B Virus infection: Pathogenesis, Implications and Management” in a book “Comprehensive Textbook of Hepatitis B” published by Jaypee Publishers, Ansari Road, New Delhi
• Saraswat VA, Sengar VS, Rangan M. A chapter on “Minimal Hepatic Encephalopathy in Liver Cirrhosis” in a book “Hepatic encephalopathy” published by Elsevier Publishers, Gurgaon, Haryana