Children rights

Dear sir I got married I'm 2014 and we blessed with a baby boy in may 2016. We both are working. After my sons birth I requested my wife to leave her job to take care of baby but she denied. Then her parents are taking care of my child in day time when we go to work. And after work we both take care of our baby. I was also shifted to my wife's parents home to take care of my child. My son is very fussy and he is a very bad eater. His growth is very poor. Then my wife's company shifted to badodra and she transferred to badodra in Jan 2018. That time my son was 1.5 years old. I requested her to not go to badodra and leave her job. But again she denied and she shifted to badodra. After then me and my wife's parents are taking care of baby. My baby health becomes very poor. He often got ill. But she don't care. I have to feed my baby at morning and night. And I am nat able to go office timely beacse baby cries horribley when I left home. He even not eat whole day sometimes. But she don't worry. Now he will be 3 years old in may 2019 but he looks like 2 years old baby. He is very irratalble and fussy because of poor care. Actually he need his mom but she dint understand. Can I file a complaint and take legal action against her irrespective of childrens right.please advice