The association of ETS with adverse foetal and reproductive outcomes has been the subject of two recent publications.11,12 Smoking is on the rise in developing countries.13 Environmen- tal conditions like overcrowding may make the health effects of ETS more pronounced. The adverse health effects of pas- sive smoking have been studied in developing and underde- veloped countries only occasionally. Most of the studies from India are on the pulmonary effects of passive smoking.14 In this study we examined the effects of exposure to ETS on the ma- ternal and foetal outcome in pregnancy.