Fake dowry case against me and my family.

I got married on 6 December 2014 as per Hindu religion. After my marriage my wife's behavior towards me and my family was not good. After marriage she stayed at my home only for 3-4 days and went back to her home for chauthi taking all her belonging and valuable jewellary and other gifts given by my family. We called her many times and went to her home also to take her back and every time she and her parents give some or the other excuse saying that she is going to appear for an entrance exam, there is a marriage in family etc. After 2-3 months she stopped answering my and my family calls.My father tired calling her father many times and her father behavior was so rude towards my father.They all started giving threatening that they will file a dowry case against me and my family. I got scared and kept silent thinking that when ever she wants to come she will come back to my home. Now on November 2016 they filed case under section 498a, 307, 323 and dowry act 1961 3 and 4. Plz guide me, as they have filed case against me my father, my mother, my elder sister and younger brother. Me and my sister are working in Bangalore before and after marriage.