Dear All,
I need to draw P&I diagram for Motor to show Winding RTD's, Bearing temp, Sensors ect... for that i need P&I symbols, I searched in google but no related result found.
 
Pls guide me where will I get the symbols and Basic information regarding the symbols, because I am going to draw it first time.
 
Thanks in advance
       Mahesh

Check out the CADforum's block library.  I'm pretty sure there is a drawing that has P&ID symbols on it.  Wouldn't you be more apt to be using electrical symbols though?  P&ID symbols generally involve valves, pumps, and instrumentation amongst other things.

Just wanted to add to this answer.You could also try the ISA website, which is the international governing body when it comes to things like P&ID symbology.