I am using the sim800c module for the first time for sending messages but getting no response do i need to connect an extra battery to power the module or the 5v supply from arduino board will work
It depends on how much power the sim module needs. My uneducated hunch is it is ore than any arduino can supply, so yes, a seperate power supply is probably needed. It can be the same physical supply, just run the power leads to both the arduino and the SIM module separately, or use two power supplies.
can you please give any suggestion on how to connect the module with arduino and how to run it
Post a schematic showing how you have connected things and your code.