Justice to a sister who was mudered by her husband for dowry on 8th march

8th march the whole world celebrate International Womens day but we were in deep sorrows. My sister Archana Barnwal(Koderma) d/o- upendra kumar koderma was married with Pankaj kumar(patratu) s/o-ramkrishna modi patratu ramgarh jharkhand in 2015.Pankaj is working in Jindal in Jajpur orrisa. Since marriage my sister was convict of domestic violence regarding demand of dowry. The in-laws were also continuously threating her.
On 6th march pankaj took my sister to Jajpur from patratu and beaten her.On 8th march she was murdered and body was hanged having several injuries.
My sister Archana have 11 months daughter which was taken by ramkrishna modi to patratu we fear that what they have done with my sister they will repeat with that child also.
I plea for justice to my sister and handover the custody of 11 month child to nani i.e my mother.