That is really sad.. infact very lame. I can understand what really you are facing. Going to police is not much help as they are simply not helpful untill you have something for you or you are some big VIP.
I suggest that you send mail to various Indian Department.. start with "President of India", they have email address there.
Ask them just to instruct Police to help you, if you can get and present written order from President of India for Police then would best. Then send another mail to few other dept. like : Human rights dept. and also "Right to Information act" that why you are not getting recognition .
Human Rights Dept. India :
http://nhrc.nic.in/RTI Portal India :
http://rti.gov.in/Make sure you attach email send to President of India in every mail you send to these department.
Lastly, look for some news paper reporter.. ask him to k make a story on your persue.. they are always looking for something similar. ie. how you tried to get justice. If you can also get some
NGO involved with you then would be great help. Just present them your approach with confident.. they will surely help you.
Police can be of help but goto them with NGO guys and reporter only .. but only after sending mails and keeping copies of mails with you.
But the problem is that, if you go to police then every thing will be public and he can easily defy you. Try consulting a reporter etc. first and be patient.
And remember, why we are facing such corrupt system because every one is just not so aware and responsible.. don't just be part of crowed.