Money demand from wife for expenses

Im second husband to my wife.She divorced first husband as he was gay.Her father sent us the list of all gifts(including house) which he will be give us post marriage though we did not demand.l have skin condition which I informed before marriage.It was agreed that since my medical expenses are high and my wife is more educated than me she will be working and supporting me.She was fine until she conceived with child.suddenly she changed.she was not doing any work.Not taking care of my basic needs though I have given her all facilities(maid+furniture+appliance of 5lakhs).She even threw me out of her house and kept everything.She left to her mothers house for delivery.She only called to ask money from me.She did not inform after child birth.I'm jobless from 6 months and no money.She gets 20000 per month as rent and demanding 20000 monthly from me for expenses.She has denied to work.Her father is threatening that he will take action. Please advise on What action he might take