What can I do ,my husband ran away n I know nothing about him.

I was married in 2008.My inlaws never let my husband stay with me.He also never wanted to live with me.He is always happy to see his family happy. I was very depressed.My inlaws n husband sent me to my mother's home.There I got govt job. I ve a son.My son worked in Vadodara.But all his salary wad for his family. He never gave me money even for his child. He blocked my no. always. I cried for help to every member of his family.But they mistreated me. All my streedhan and dowry materials r still with my in laws. They never returned me .My journey of 12 years was filled with false hope,cries,physical abuse and mental tortures.But in 2020 July I became successful to bring him to live with me at my place.But his family never accepted this.They threatened my father ,mother and brother and made my life hell.My husband remained irritated and physically abused me.Ultimayely he ran away from house .I kept running after him.Even my son was running for him,but we failed to catch him. He reached at his family's place. What r my legal rights and wat can I do legally now?