my name is siva sankari. i am from tamilnadu in south india. i have only one sister 5 years younger to me.my sister is deaf and dump i.e she cant able to hear and speak. my father died when we are young. my mother only look after us. i got married before 5 years, my husband is a nice man. i went to my husband house after marriage. i lived in a joint family with my husband's father, mother, brother and his sister. two years before my mother died. at her last breadth she asked me promise for looking after my sister. i also agreed. then i bring sister to my husband's house. my husband also agreed. after some month my mother in law started scolding me and asked me leave my sister in orphanage or marry to someone.then i started looking after bridegroom but nobody come foreward to marry my sister. oneday my relatives came to my home and we discussed about my sister's life. they suggested me that there only better way for my sister is to be married to my husband itself. they told then mother in law will scold you and also you can take care of your sister. they also told these kind of marriages are coomon in our community and nobody can take care of your deaf and dump sister better than myself. i got shocked. they then told your sister is now in late 30's , you should understood that she also have sex feelings. so its the better way. when i consulted this with my sister, she also agreed with a cry. after that i understood about her feelings. i consult with my husband's family. they also agreed happily. but i not consult with my husband. can i go with this?another information is i am also not having child for past 5 years... this is also one of the reasons.