have a plot of land adjacent to a normal road (not SH or NH). The Public Works department modified the road few years ago and built a kind of drain (oovu) where the rainwater that flows along the road gets diverted into our property. We were not at the place when they built such a drain, we were outside Kerala, and therefore we came to know about that couple of months ago only. Now we were reconstructing a border wall (increasing the height of a pre-existing wall) and at the same time building a small wall (around 2 bricks height) against the drain that was created. All constructions are done on our side of the land. Unfortunately, we completed the construction when some one told us that we needed the permission from the Panchayat to do so. Kindly advise on how can we proceed further and also about consequences. During rainfall, all public water flows into our property because of this drain.