I Want to upload lisp file file in Autocad 2013LT but i unbale find lisp folder.Can any body tell me the location where i can upload my lisp.

Hello Farooq.syed, use the command APLOAD to open a dialog box where to find ( Look in ) and charge your lisp, then you launch the lisp command to execute it.
Place a copy of your lisp files in a directory where you can remember the place, or in a place where you place all of them.

Both of you should know that lisp is NOT supported in AutoCAD LT.  LT can use diesel macros though.BTW...even in full AutoCAD there is no default lisp folder.  And one would use the APPLOAD command to load a custom lisp routine or one of three other methods (acaddoc.lsp, acad.lsp or Startup Suite).
John Connor2014-11-03 11:37:53

Options -> Files -> Support File search path (please test it) defining your path to Lisp-files enables loading Lisp without writing the whole path every time. You can have several support paths!!

jkaunisto:  NO you can't.  LT does NOT support the use of lisp.  It will however support the use of plain and diesel macros.