He is known for his highly skilled and precise neurosurgical work. Dr. Tyagi is medical graduate of Prestigious King Gorge medical college Lucknow and trained in neurosurgery at the premier neurosurgical institute in India, All India Institute of Medical Sciences (AIIMS) New Delhi. He has further been exposed to the best of neurosurgical centers in the world. He has undergone specialized training in the fields of neurovascular and skullbase surgery at clinical center Ljubljana, Slovenia under Prof. Vinco .V. Dolence who has a world authority in these fields.