False allegations by my sister in law on me

Im in chennai, Working person Recebthly i got a call from police station that my sister in law given complaint on me , my mom and my brother ( husband) Then we went to police station and there police explained about complaint that we have harrased her and me and my mom beaten her 4 month ago, And my brother(her husband) harrased her in dubai 2 years ago, But two months back my brother and my sister in law had a argument by whatsup and both start scolding each other After that there are no communication between then , even though all these days my brother used to provide her money monthly. Now she came to police station that she said * he is not giving money( but he gave her almost 10. Lakhs in 9 month) * she said me and my mom beaten her on august 2024( last 1.5 years she is staying with her mom house) in 1.5 years she stayed with us 5 days maximum , ana we dont even touch her * she is saying that im financially dependent on my brother- but i never get money From my brother and i have a proof * earlier stage when she talking with my mother in law she used to say that she want to destroy mine and my brother career - now she trying to same * i have all the proof that whatever complaint againt me and my mom is fake allegations * my brother and wife were scolding eachother by phone - which both victim even though she saying that my brother only harrased * i got mentally disturbed that because of her fake allegations keep on doing on me, which i cant focus on on my job Kindly advice us on above scenario what to next and how to approach further