False dowry harrassment case

My cousin's wife has filed a false dowry harrassment case under 498A and sec 3, 4 of DPA and other sections though she lived with him and his joint family only for 3 months and there was absolutely no cash or material things were asked or taken during wedding or demanded later on, during her 3 months stay in husband's house. She was taken care of very well all through. Husband and wife didn't get along since the beginning and she went back to her mother's house on her own will. she refused to come back even after repeated visits and requests. She filed maintenance case 125 CrPC which is in court for the past few months and she has not produced any evidence for her allegations. Her lawyer had proposed to settle the case outside the court, but she demanded a huge sum of money for settlement which my cousin cannot afford nor he wants to for no fault of his. Now shes filed a FIR claiming dowry harrassment against husband and in laws. Cousin got a notice under 41 A from the women's police station 10 days ago. About a week ago FIR has been filed in the court and his lawyer has applied for anticipatory bail now for which he says the case will come up in the court after another 10 days. Is this how it works in Karnataka? Will the police arrest innocent husband and old and ill parents in the meanwhile for no fault of theirs? Will the police come home to arrest? What should be done now? He's not gone to the police station yet.