Encroachment of a 1000 year old Lake using Fictitious Documents and abuse of Court Process

A thousand year old lake is being encroached upon, by abuse of the Legal System, and the Court process, using fictitious documents, collusion of various authorities, and even Government advocates. Citizens are putting up a fight by running a public campaign and protests. But we require proper legal guidance. Our campaign is being documented on the facebook page: Save Pattandur Agrahara Lake: https://www.facebook.com/SavePattandurAgraharaLake/ All court rulings and other evidences are in this folder: https://drive.google.com/open?id=1ZQ0cN5kgAl2A8IVflK7Nhkxh4P7zqfBX Very surprising that a case that was returned in a 2007 HC Judgement, with questions about every single document that the claim by encroacher is based on, finds its way back, and appeals by state are rejected by HC, and SC. Clear indication of corruption in lower judiciary, then very clever manipulation of the legal process by encroachers, hand in glove involvement by officials and govt lawyers, by delaying appeals, not producing evidence in courts, etc., What is the way to save this Lake?