Is theft done by family member criminal offence?

My name is Prasad. I have one elder brother and younger sister. My father died in 2009. My mother died in 2019 May. They prepared no will. We all three legal heirs got married, have children and settled at Hyderabad. My parents have properties in our town. My elder brother went alone to our parents' house in June 2019, without my knowledge, brought all the documents of our properties, gold jewellery, silver items, etc. And kept at his home(hyderabad). No partition done yet. Can I file a theft case against him? As there is no will made by my parents, no partition done yet, how can he have a right to go into my parents house and take all the valuable things without the consent of other legal heirs? Pls guide me