Relief from Maintenance under Domestic Violence Laws

I am 68 years aged retired govt. employee. My son committed suicide approx 2 years back. He committed suicide due to her relatives pressure although suicide note only says that "Do not let her stay in this house after me". But some months after this she filed a case of DV against me, my wife and my second son and his wife. The house(Self earned) is on name of my wife.(Aged 65 years). My second son and his wife are living in separate house. My son was paying me rent of 5800 for one room. A Civil court case was filed "To Not to enter forcefully in the house". this case has been closed as per her statement in the verdict "That i will not disturb the peaceful possession of the house. Now she is demanding Maintenance, 10 lack money, 20000 p.m. from me by using false allegations. We do not have anything of her belongings like streedhan etc., but no ways to prove it. The case is 1.5 years old and almost nothing has advanced. So what are the options we have? Do we need to pay her?plz reply.?