What to do if the husband is impotent

Dear sir/mam I am Hindu girl married after 4.5months I came to know my husband is impotent during this period in my in laws house they did not give me a proper food and started abusing me saying that why do you need children at this age you,more over as you crossed age of 30yrs you should not have feelings In Your body and it is not compulsory to have children after marriage don't think about first night that is not a life ,they use to give me rest less work I got fed my husband never spend time with me .I once asked him strictly then he answered that having children is every one has a good faith you don't have that not I am interested to talk with you then I decided to leave him and know staying with my parents and filed a case plz guide how to punish them who.played with my emotions and life