Pushbutton Switch

By connection to the two coils of a latching relay (assuming that NO means "normally open". Your question would have been a lot clearer if you had not used upper case throughout your post. Upper case is also considered SHOUTING when used in posts - please avoid it).

The generally accepted practice for a motor starter is to use a NC button and a NO button. These are used in combination with a latching relay; or on a motor starter, there is a auxillary mounted NO holding contact. This combination is often called a start-stop station. The NC button always precedes the NO button in the circuit.

I couldn't agree more.

I was, however, answering the OP's question.

Good answer electricmel.

Bad answer JohnDG!

I disagree, in both cases.

JohnDG was, as he said, responding to the exact question the OP posed, without judgment on it. If I were stranded on a desert island and posed with a problem of only having 2 push buttons (note the spelling atulsaxena ...) with only NO contacts on them, this is the way to solve it (assuming someone had also left me a atching relay of course). It may seem overly complex and not a good idea, but it is the correct specific answer. Technically, if nobody left me with that latching relay, there is NO WAY to affect a Start-Stop scenario with only 2 x NO contacts. So given that, JohnDGs answer is really the only possible correct scenario, even if it does make an additional device necessary.

TECHNICALLY, electricmel made an error in his response, along with a generalization that is not true. "The generally accepted practice for a motor starter is to use a NC button and a NO button. These are used in combination with a latching relay..."

1. You would NOT use a NO and NC contact along with a latching relay. The latching relay needs the unlatch coil to be energized to release the relay. How would you do that with a NC contact? A seal-in contact on a standard relay does NOT make it a latching relay, becase if power fails, it will not return to the latched state, i.e. 3-wire control. The statement about using the aux. contact of the motor starter is correct in a 3-wire control scenario, the error was just in applying that concept to a latching relay (see below).
   
2. "Generally accepted practice" is a little too general. While 3-wire control is a very good idea because it provdes for under voltage dropout and manual resetting, 2-wire control is perfectly acceptable and used almost as much, especially in automated applications. Using a latching relay is exactly how you would do it in the days before PLCs.

I know I'm just being a nit picker here, so flame away if you must...

GA, JRaef. When I read "latching relay" in electricmel's post, my brain replaced it with "self-latching relay", i.e. wired with power supplied to the coil via one set of NO relay contacts and the NC "STOP" button, thus:

... my bad!