Dr. Achal Kumar Srivastava is an Indian neurologist and medical researcher who serves as Professor of Clinical Neurophysiology in the Department of Neurology at the All India Institute of Medical Sciences (AIIMS), New Delhi. His responsibilities include leading clinical neurophysiology services and the ataxia centre, heading Unit-3 in the Department of Neurology, and participating in the Comprehensive Epilepsy Care Team. He also established the department’s Movement Disorder Clinic.

Dr. Srivastava completed his medical degree in 1991 and MD in Medicine in 1994 at Motilal Nehru Medical College, Allahabad, before obtaining a DM in Neurology from AIIMS in 1998. He subsequently worked as a scientist fellow at the CSIR-Institute of Genomics and Integrative Biology in Delhi and joined AIIMS as an Assistant Professor in March 2001. His academic work includes teaching and research guidance, with the AIIMS profile noting that he has mentored more than 120 DM and PhD students.

His research focuses on the genetics, diagnosis, and prognosis of movement disorders, particularly hereditary ataxias and spinocerebellar ataxias. His work also covers epilepsy and genetic mechanisms underlying neurological disorders. He has contributed to more than 430 publications and has received national and international recognition for research presentations and academic contributions. His professional service includes editorial responsibilities, participation in institutional ethics and academic committees, and membership or fellowship in several neurological and medical organizations.

Educational Qualifications

• Medical degree, Motilal Nehru Medical College, Allahabad (1991).
• MD in Medicine, Motilal Nehru Medical College, Allahabad (1994).
• DM in Neurology, All India Institute of Medical Sciences (AIIMS), New Delhi (1998).

Fellowship & Areas of Interest

• Scientist fellowship at the CSIR-Institute of Genomics and Integrative Biology, Delhi.
• Movement disorders and hereditary ataxias.
• Spinocerebellar ataxias and the genetics of neurological disorders.
• Clinical neurophysiology and epilepsy.

Research Contributions & Publications

Dr. Srivastava’s research addresses the genetics, clinical features, diagnosis, and prognosis of inherited movement disorders, including spinocerebellar ataxias and Friedreich’s ataxia. His publication record includes studies on genetic modifiers, genotype–phenotype relationships, molecular mechanisms, and genetic testing approaches. The supplied profile reports more than 430 publications.

Selected publications:

• Rossi M, Stephen CD, Damásio J, et al. “Unravelling the Global Tapestry of Genetic Ataxias: Epidemiology and Genetic Testing Approaches.” Movement Disorders. 2025;40(9):1805–1820.
• De T, Sharma P, Upilli B, et al. “Spinocerebellar ataxia type 27B (SCA27B) in India: insights from a large cohort study suggest ancient origin.” Neurogenetics. 2024;25(4):393–403.
• Kumar M, Sahni S, et al. “Molecular clues unveiling spinocerebellar ataxia type-12 pathogenesis.” iScience. 2024;27(5):109768.
• Uppili B, Sharma P, Ahmad I, et al. “Sequencing through hyperexpanded Friedreich's ataxia-GAA repeats by nanopore technology: implications in genotype-phenotype correlation.” Brain Communications. 2023;5(2):fcad020.
• Srivastava AK, Takkar A, Garg A, Faruq M. “Clinical behaviour of spinocerebellar ataxia type 12 and intermediate length abnormal CAG repeats in PPP2R2B.” Brain. 2017;140(Pt 1):27–36.

Awards, Honours, and Recognitions

• A.B. Baker Teacher Recognition Award, American Academy of Neurology (2025).
• Best Paper Award, Neurological Society of India conference (1998).
• Outstanding Paper Presentation Award, American Academy of Neurology conference (2004).
• Young Investigator Award for work on CAG triplet repeat disorders.
• Kayastha Ratna Award; Mati Samman; and Excellence in Neurology recognition.
• Invited to present research on spinocerebellar ataxia type 12 at Johns Hopkins University.

Specialization

• Clinical neurophysiology.
• Neurology and movement disorders.
• Hereditary ataxias and spinocerebellar ataxias.
• Genetics and diagnosis of neurological disorders.
• Epilepsy.

Professional Fellowships & Service

• Fellow, Royal College of Physicians, London.
• Fellow, American Academy of Neurology.
• Fellow, American Neurological Association.
• Fellow, Indian Academy of Neurology.
• Fellow, National Academy of Medical Sciences, India.
• Fellow, National Academy of Sciences, India.
• Fellow, Indian College of Physicians and Movement Disorders Society of India.
• Serves on AIIMS ethics and academic committees and has contributed to external medical research and academic review panels.

• Professor of Clinical Neurophysiology, Department of Neurology, AIIMS, New Delhi.
• Head of Unit-3, Department of Neurology, AIIMS.
• Leads the Clinical Neurophysiology Facility and Ataxia Clinic; oversees the Neurobiology Laboratory and neurophysiotherapists.
• Member, Comprehensive Epilepsy Care Team at the CN Centre, AIIMS.
• Established the Movement Disorder Clinic in the Department of Neurology.
• Former Assistant Professor, Department of Neurology, AIIMS, appointed in March 2001.
• Former scientist fellow at CSIR-Institute of Genomics and Integrative Biology, Delhi.