Unethical research practices at Graphic Era University

Hi guys I have experienced very unethical research practices at our college. I was working under a professor for 5 months on a research paper. Me and my friend were even working during exams on this project. We worked very hard on finishing and then writing a research paper with a hope of getting atleast a good research paper by the end of our bachelor’s. The professor told us that our name will be in the research paper. But then what? When the work was all completed, the professor told us that for publishing this research paper they need 50,000 rupees but the university only gives 10,000 rupees per research paper. So he told us that if they allow the publisher to add 2 names of their own then will publish the paper for free. But in the latter case my friend’s and mine name had to be dropped. I felt so helpless and at that time I was busy with placements and was afraid also to speak on this. But now I have time to speak on this and get justice if other people are also experiencing the same. Thank you.