Nearly 1–3% of all pregnancies are complicated by heart diseases and in India Rheumatic heart disease (RHD) is a major challenge and accounts for 70% in pregnancy. Although the attack rate for rheumatic fever is roughly equal among genders, mitral stenosis is two to three times more common in women and is generally believed that the M protein antigen held in common between the heart and group A hemolytic Streptococcus results in an autoimmune attack of the heart in response to streptococcal infection.