Usne PR nahi nikala hota toh usko bhi mil gaya hota And yes Lhb ke mamle m WR silent zone h ekdum silently lhb de deta h bhagalpur wali ke bhi rake h surat m but diya nahi.... and i think aur aisa koi zone nahi h joh achanak se kisi train ko lhb de do woh 4o rake ko kuch zone toh 2 rake denge 2 baad m dete h