Udcon Enterprises — Payment not made

I worked for this company as a data entry analyst. They asked me to pay Rs.2000 as a deposit and I did that. After that they sent me a PDF file. I completed my job on time. Total 150 pages so they assured me to pay Rs.15000. They said that the payment will be made within 24 hours but now it's been a month still I'm getting no response. Please help me to get back my payment 15000+2000= 17000