you can do it with amber..kindly find the attached link and go for it...

for creating input files----http://ambermd.org/tutorials/basic/tutorial4b/

for running pbsa and gbsa ---

http://ambermd.org/tutorials/advanced/tutorial3/py_script/section6.htm

I know using amber, I can do this but i am gromacs user. so i can not go with amber. i need software which allow gromacs

Follow this link may it useful for you

http://ambermd.org/Questions/amber-archive.mbox