Primary dystonia is due to TOR1A mutation and epileptic encephalopathies such as ARX and GNAO1 genetic variants and neurodegenerative disorders such as PANK2 which is characterised by neurological features like disabling, abnormal, involuntary movements whereas secondary dystonia develops due to environmental factors that cause injury to the brain. The gene discussed is PANK2; the disease is Epileptic encephalopathy.