Hi @chhaya_900, as you were trying to place a buy order for a scrip, which is part of the Periodic Call Auction category. Just a heads-up these stocks don’t trade continuously like others. Instead, they follow specific auction sessions that run every hour.
So, if you’re placing an order, it’ll get matched during one of these sessions. You can also check out this helpful post for more info: What is Periodic Call Auction and how to trade in such instruments