My cousin and NRI bought a plot of land in a society in Pune. He got the 7/12 done but did not find time to build a structure. Soon he decided to sell the land. He found a buyer and informed society for NOCbut got a shock that his plot is now "Maharashtra Shasan" and the 7/12 does not exist. How can this happen. he now has two 7/12 for the same land. What action can be taken now?