How can I protect myself from false dowry and harassment case?

My sister-in-law (elder brother's wife) has filed a false FIR of harassment for dowry and rape on me and my father. She was married to my elder brother during January 2022 and she's alleging that me and my father raped her on first night. I stay in a city 300 km away from where my brother and his wife are staying. She's alleging that rape occurred whenever I visited on Holi, Diwali etc She's staying at her father's residence in the same city for last 8-9 months and but filed case only 2 months back. My brother was also staying with them but has now come back to my parents who are living in a separate house for the last 6 months. Crime branch of Police has done inquiry at our old and new residence but my father was not available there at the time of inquiry. Me and my father are both Central Govt. employees I want to know if anticipatory bail can be granted to me and my father in this case and what is the procedure. If bail cannot be granted than what can be done to save us.