Denied of maternity leave compensation and non payment of last month.

My employer is not giving me my maternity benefit always misguiding by saying they have to look at rules and it has been more than 2 months. Also not paid full salary of one month. I have in full since 1 year till 3 weeks prior to my delivery and due date. No sick leaves pf or any other leaves are there. I applied for mat leave in proper format. He has not denied neither paid any compensatn. When my husband went to enquire he mis behaved. I am very much worried. For salary he told i have not worked properly so whatever partial salary he is giving take that else nothing will be given. What action can i take against him?