Gst reverse charge

for security service providers, let have example... raised a invoice  to LIC for rs10000/- with gst 18% total -11800/- reverse charge applicable.

the gst is paid by LIC.. my question: point of security service provider: in gstr1 he  declares 10000/- invoice value and select supply attract reverse charge. below he has to declare in 0% or 18%....  then comes to GSTR3b where he has to declare