Arthashastra
सुरुङ्गया कुक्षि प्रदरेण वा प्राकार भेदेन निर्गच्छेत् ॥
he may escape through a tunnel or through a hole newly made or by breaking the parapet.
english translation
suruGgayA kukSi pradareNa vA prAkAra bhedena nirgacchet ॥
hk transliteration by Sanscript