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'return' statement is generally used to return from the current function to its caller. return <expression>; will return the value of the expression to its caller. Its generally a good coding practice to use only one return statement per function. Too many return statements would lead to a kind of confusion.

'exit()' is used to terminate the execution of the current function and return to the operation system.

'return' is used to return a value from a function, where as 'exit' is used to come out of a block or to terminate a loop.

return statement is a programming language statement used to return control from the called function to the calling function

exit is a system command to kill the process in execution.

return statement return the control to its parent function where as the exit() is used to get out from the programme ......safely or forcefully