Is there any time limit to executing the 'Final Line Survey' ( FLS) by the railway department after the completion of the preliminary line survey? Because, In our area, We bought a plot and constructed a new house and later on We came to understand that there was some preliminary line survey done by the railway department almost 5 to 6 years back. In mean Time, There are many houses coming and our area become populated more. In this scenario, How the Final Line Survey would be reasonable based on the preliminary line survey? Is there any possibility to get a stay order for the Final line survey OR Are there any legal possibilities available to instruct the railway department to start this as a new project? I am in Tamilnadu and our plot is approved by CMDA ( Chennai Metropolitan Development Authority)