• APOLLO HOSPITAL CHENNAI SINCE 2015
• GLOBAL HOSPITAL CHENNAI 2013 TO 2015
• LAKESHORE HOSPITAL ERNAKULAM 2011 TO 2013
• ZURICH UNIVERSITY HOSPITAL SWITZERLAND 2010 TO 2011 
• SETH GS MEDICAL COLLEGE [ KEM HOSPITAL  ] MUMBAI 2009 TO 2010 
• SUDHEENDRA MEDICAL MISSION HOSPITAL KERALA 2007 TO 2009 
• SANJOE HOSPITAL KERALA 2006 TO 2007 
• BOMBAY HOSPITAL , MUMBAI INDIA 2002 TO 2006

• Founder and past President of Kerala Academy of Traumatologists [KAT], an organization of doctors treating trauma victims.
• Life member Cerebro Vascular Neurosurgeons India
• Life  member Neuro Spinal Surgeons Association India
• Life member of STNI Society of therapeutic Neuro interventionalists
• Life member of the society of NeuroVascular Interventionists of India 
• Life Member INR Fellows Zurich , Switzerland

• REVERSAL OF ACUTE STROKE IN YOUNGEST PATIENT IN THE COUNTRY BY MECHANICAL MEANS WAS DONE IN 2013
• Claimed the best paper award at the annual research meeting of medical research centre Bombay Hospital Trust for the paper on ‘Clinical outcome of Cervical Spondylotic Myelopathy with special reference to Myelomalacia’, Aug 2005
• Trained successfully neuro interventionalists of Shanghai China  in mechanical thrombectomy .organized and invited by Changhai hospital Shanghai , China in April 2016
• SUCCESSFULLY TREATED FIRST REPORTED CASE OF BILATERAL DIRECT CAROTID CAVERNOUS FISTULA IN INDIA 

• Presented paper on ‘Microsurgery of cranial AVM s in adults’ at the annual research meeting of Medical Research Center, Bombay Hospital Trust. Mumbai, Aug 2004.
• Presented paper on ‘Outcome of Myelomalacia in Cervical Spondylotic Myelopathy’ in 53^rd  Annual conference of Neurological society of India, Dec 2004, Indore
• Presented paper on ‘Prognostic factors in Cervical Spondylotic myelopathy’in54th annual conference of neurological society of India. Dec 2005, Vishakhapatnam 
• Claimed the best paper award at the annual research meeting of medical research centre Bombay Hospital Trust for the paper on ‘Clinical outcome of Cervical Spondylotic Myelopathy with special reference to Myelomalacia’, Aug 2005
• Co author of the paper ‘Arterial dissection an often missed case of post trauma stroke’ presented at the 114 annual research meeting of medical research center of Bombay Hospital, 2004.
• Co author of the paper ‘ Microsurgical internal decompression of lumbar canal stenosis’two hundred consecutive cases presented at 122 meeting of medical research centerof Bombay hospital 2004.
• Co author of the paper ‘Low grade Gliomas; role of radical surgery and molecular biology presented in 11th Romanian conference of Neurosurgery at Prahom Valley, Sep 2006.
• Co author of the paper ‘Surgery of the meningiomas of posterior fossa:Technique, pitfalls and results presented in the 9 French course of Neurosurgery in Romania in sep 2004
• Co author of the paper ‘Intra Cranial Aneurysms in childhood-12 year personal series’, presented in Pediatric Neurosurgery Conference in Goa,  in Oct 2011
• Presented poster on ‘Intracranial Aneurysms in childhood-12 year personal series’ in NEUROVASCON – AIIMS, New Delhi, Oct 2011.
• Presented paper on Cerebral Circulation & Interventional Neuro Radiology in the CME ON Neuro Anesthesia and Critical Care held on 22^nd June 2014 at Father Muller Medical College, Karnataka.
• Presented a paper on Management of Traumatic Brain Injury in the CME ON NEURO ANESTHESIA &CRITICAL CARE held on 22^nd June 2014 at Father Muller Medical College, Karnataka.
• Participated as Faculty in continuing medical education on Neuro Anesthesia and critical care held on 22^nd June 2014 at Father Muller Medical College Hospital, Karnataka.
• Moderated a session on Panel discussion on ‘Brain death’ in the CME ON Neuro anesthesia and Critical Care held on 22^nd June 2014 at Father Muller Medical College, Kanganady, Mangalore, Karnataka.
• Presented paper on management strategies in Cerebral Arteriovenous Malformations in Myanmar - India Neurosciences Conclave  4^th to 5^th February 2014.
  • Participated as faculty in GLOBAL Neurosciences Master class; Neuro-critical care , 29^th Nov to 2^nd Dec 2013.
  • Presented paper on- management of stroke beyond Intravenous Thrombolysis  in  Global Neurosciences - Master class  on 1^st Dec .2013  organized at Global Health City, Chennai.
  • Presented a paper on Interventional management of neurovascular emergencies in GAMET – 2014: Global Annual Meet on Emergency Medicine and Trauma.
  • Participated as Chairperson on  the session  on critical care  management of head injury patient in GAMET 2015 25^TH TO 29^TH MARCH  at TAJ  GATEWAY ,CHENNAI .
  • Participated as faculty and presented the paper on extending thrombolytic window in acute ischemic stroke  in GAMET 2015  organised on march 25 th to 29 th  at TAJ GATEWAY – chennai
  • Presented poster ‘A retrospective study on management of acute ischemic stroke –initial experience in a tertiary care centre’  in Indian stroke association conference 2014
  • Participated as faculty in CME ON ‘ STRIKE OUT STROKE’ on May 17 th 2015 organised by fortis malar hospital  -Chennai
  • Presented paper on Recanalization and reperfusion strategies--Role of stroke Interventionist,in  cme on strike out stroke on may 17 th 2015 organised by fortis malar hospital – Chennai.
  • Attended as faculty in training programme for  training neuro interventionists in mechanical thrombectomy organized by Changhai hospital Shanghai , China in April 2016
  • Presented paper on ‘preferential recanalisation  of tandem occlusions in acute ischemic stroke of anterior circulation ‘ in 16 th annual conference of cerebrovascular society of india .Neurovascon 2016
  • Chaired session on Cerebral arteriovenous malformations at STNI 2017 COIMBATORE INDIA
  • Co author of the paper  ‘An interesting case of undefined blood supply’ presented in TANPAANS  Tamilnadu & puduchery association of Neurosurgeons 1 st April 2017.
  • Coauthor of the paper “Unusual vasculature a case of ICA trifurcation’ presented in TANPAANS  Tamilnadu & puduchery association of Neurosurgeons 1 st April 2017
  • Author of  chapter on ‘‘Mechanical thrombectomy using Stent Retrievers in Acute Stroke”published  In Asian Congress of Neurological Surgeons  Surgical Manual  2017.
  • Author of the paper ‘Factors affecting rupture of an aneurysm in patients with multiple intra cranial aneurysm ‘  won second best paper award in NEUROVASCON 2018
  • Author of the paper ‘Radiological &clinical comparison of flow diverter v/s stent assisted coiling for intra cranial aneurysm .Neuro vascon 2018
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  • Co author of the article, ‘Post Traumatic Facial Paralysis: Treatment Options & Strategies’ published in Indian Journal of Neurotrauma; Vol. 2 no. 1 June 2005
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  • Co author of the article ‘Outcome of Myelomalacia in cervical spondylotic myelopathy’ published in Abstracts annual conference Neurological society of india DEC.2004
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  • Co author of the article ‘Spinal Intramedullary Tumours’ published in the Journal, Progress in Clinical Neurosciences; Vol. 20.2005.
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  • Co author of the article ‘Prognostic factors in cervical spondylotic myelopathy ‘ published in Abstracts annual conference Neurological society of India ,Dec,2005
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  • Primary author of the paper ‘Arachnoid Cyst Associated with Painful Tic Convulsif’ Journal of Clinical Neuroscience; Vol.19. Issue 5 May 2012.
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  •  Co author of the article ‘A Retrospective study on management of acute ischemic stroke – initial experience in a tertiary care centre’ published in Indian stroke association conference abstracts 2014 Co author of the paper  ‘An interesting case of undefined blood supply’ presented in TANPAANS  Tamilnadu & puduchery association of Neurosurgeons 1 st April 2017.

                       - Author of  chapter on ‘‘Mechanical thrombectomy using Stent Retrievers in Acute Stroke” published in

In Asian Congress of Neurological Surgeons  Surgical Manual  2017

                  - -      Author of the paper ‘Jugular foramen lesion diagnostic dilemma – scwannoma or para ganglioma’  published in

Indonesian journal of neurosurgery [IJN ]2019 volume 2 , number 3 ;76-79