Myasthenia Gravis (MG) is an acquired, autoimmune disorder affecting neuromuscular junctionpresenting with easy fatigability, progressive weakness, diplopia, difficulty in speaking andswallowing and even ventilatory failure in severe cases. During pregnancy the disease maygo into remission or may exacerbate at any time during first, second and third trimesters orpostpartum period. We are reporting a case of 26 years multigravida female, known case of myasthenia gravis since 9 years, who underwent caesarean section and developed muscular weakness on second postoperativeday. Her neonate also had tachypnoea and hypotonia, both the mother and the baby weremanaged aggressively and responded well to therapy.